Technical & Commercial Proposal 9 to 12 man Sat Systemdeltakish.com/images/Sat System.pdf · driven...

Gulf Marine Contracting FZE Office No.6, 8

th Floor, Tower No.2, Amenity Centre, P.O.BOX: 6602, Ras-Al-Khaimah (UAE)

Tel: +971-7-243 2288 / Fax: +971-7-243 2289 / Email: [email protected] / Web: www.gulfmarine.co

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General Technical Specification

300 MSW 9 Man Saturation Diving System with Bell Gantry Launch & Recovery System




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CONTENTS

1.0. INTRODUCTION ......................................................................................................................... 3

2.0. GENERAL DESCRIPTION .............................................................................................................. 3

2.1. TWINLOCK 6 MAN LIVING CHAMBER (DDC1) ....................................................................................... 3

2.2. TWINLOCK 3 MAN LIVING CHAMBER (DDC2) ....................................................................................... 3

2.3. SINGLE LOCK HYPERBARIC RESCUE CHAMBER (HRC) ............................................................................ 4

2.4. SYSTEM RATING & CHAMBER DESIGN .................................................................................................. 4

2.5. DIVING BELL (SDC) ................................................................................................................................. 4

2.6. BELL HANDLING GANTRY SYSTEM ......................................................................................................... 4

2.7. LIFE SUPPORT CONTROL ........................................................................................................................ 5

2.8. DIVE CONTROL ....................................................................................................................................... 5

2.9. LIFE SUPPORT MACHINERY ................................................................................................................... 6

3.0. THE SATURATION MODULE MAJOR COMPONENT INVENTORY .................................................... 6

4.0. DIVING SYSTEM COMPONENTS .................................................................................................. 7

4.1. TWIN LOCK DECOMPRESSION CHAMBER DDC1 (6 MAN)/MAIN LOCK AND ENTRY LOCK (TUP1) ........ 7

4.2. TWIN LOCK LIVING CHAMBER DDC2 (3 MAN) WITH ATTACHED TUP2/WET POT ................................ 8

4.3. DIVING BELL (SDC) 3 MAN 4.7 m3 INTERNAL VOLUME ...................................................................... 11

4.4. DIVE MACHINERY CONTAINER & ENVIRONMENTAL CONTROL (ECU) CONTAINER ............................ 12

4.5. DIVER ELECTRIC HOT WATER SYSTEM ................................................................................................. 14

4.6. SATURATION LIFE SUPPORT CONTROL ROOM .................................................................................... 16

4.7. DIVING CONTROL ROOM & PROJECT / CLIENTS OFFICE CONTAINER ................................................. 17

4.8. TUP 1 MATING SPOOLPIECE & CLAMP TO DIVING BELL (SDC) ............................................................ 18

4.9. SANITARY SYSTEM ............................................................................................................................... 18

4.10. NEW BUILD GANTRY TYPE BELL LAUNCH AND RECOVERY FRAME ASSEMBLY ................................... 18

5.0. CERTIFICATION AND QUALITY ASSURANCE ................................................................................ 22

APPENDIX A - CHAMBER LAYOUTS

APPENDIX B - SAT CONTROL & MACHINERY CONTAINERS

APPENDIX C - 3D SAT SYSTEM PRESENTATION




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1.0. INTRODUCTION This general technical specification is for the 300 MSW rated 9 Man Saturation Diving System built by Submarine Manufacturing and Products LTD (SMP) and purchased by Gulf Marine Contracting FZE.

2.0. GENERAL DESCRIPTION

The Saturation Diving System is of a modular design construction. This modular construction allows the system layout to be configured in order to make maximum use of the space available on the Vessel Deck or to suit a client’s specific requirements. The saturation diving complex and associated equipment is capable of supporting the following:

2.1. TWINLOCK 6 MAN LIVING CHAMBER (DDC1)

The Main Twinlock Living Chamber DDC1 will support 2 x 3 Man Dive Teams (capacity 6 men) in the main chamber compartment. The entry lock of the chamber is designated as TUP1 and is specifically for the transfer under pressure (TUP) of the working divers to and from the SDC (Bell), Chamber DDC 2 and the HRC Chamber.

2.2. TWINLOCK 3 MAN LIVING CHAMBER (DDC2) The Twinlock Living Chamber DDC2 will support 1 x 3 Man Dive Team (capacity 3 men) in the DDC2 chamber main compartment. This compartment is also equipped with a dedicated medical bed. The attached Wet Pot (TUP) has a separate toilet and shower facility which will allow decompression/ the change out of personnel as required during the projects for medical or other reasons without disruption to the operational status of the dive system. NOTE: The TUP chamber also has a Top mating manway which could be utilised in the future for further potential system upgrades, such as the addition of a Self Propelled Hyperbaric Lifeboat, thus future proofing the system configuration.




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2.3. SINGLE LOCK HYPERBARIC RESCUE CHAMBER (HRC) The Single Lock Chamber designated as the HRC is configured as a 9 man Hyperbaric Rescue Chamber (HRC) in the event of a vessel emergency which requires the evacuation of the dive team. The HRC is outfitted with an on board battery pack, sufficient emergency onboard high pressure Oxygen and Heliox gas storage cylinder banks and manifolds, additional flotation buoyancy, internal bunks/seats, medical lock and the necessary safety harness restraints for all 9 occupants. The Hyperbaric Rescue Chamber is hydraulically clamped to the side mating manway of the TUP1 chamber by a tube turn assembly type clamp.

2.4. SYSTEM RATING & CHAMBER DESIGN The design and certification of the diving system is for a maximum working depth of 300 meters and certification is in compliance with IMCA D024 and IMCA D018 Guidance recommendations. The PVHO Chambers were originally built to International Pressure Vessel Standards. The pressure Vessels for human occupancy (PVHO) forming part of the Saturation system have been surveyed, inspected, hydrostatically tested and certificated by Lloyds Register (LR) Surveyors during the system build, including the installation of all the system acrylic viewports.

2.5. DIVING BELL (SDC)

The diving bell (SDC) is rated for 300 MSW working depth, equipped for 3 divers in saturation mode diving. The SDC internal volume is 4.7m3. The bell has one mating position utilising the bottom mating manway flange of the bell, which is connected by a tube turn type hydraulic mating clamp to the mating flange position on the top of the TUP 1 chamber. The bell is handled by the purpose designed, LR approved and built hydraulic bell gantry launch and recovery system (LARS).

2.6. BELL HANDLING GANTRY SYSTEM The overhead bell handling gantry system incorporates a hydraulically operated bell transfer trolley, which facilitates the movement of the bell from the mated position to the bell launch and recovery position. The gantry system trolley is fitted with a bullet catcher locking arrangement, which captures and locks the bell in a fixed position independent and not suspended from the bell wire, during transition from the mated position to launch position. As the bell is not suspended on the wire during transit, the bullet locking arrangement virtually eliminates the hazardous pendulum effects usually experienced with conventional type ‘A’ frame launch and recovery system. This makes the gantry system significantly safer operationally than a conventional ‘A’ frame System When the bell has fully transited to the mating point above the TUP, the lowering and lifting of the bell is carried out by fixed positional tele-leg hydraulic cylinders for precise controlled lifting and lowering of the bell to and from the TUP mated position, whilst still locked into the bullet catcher and independent of the bell wire or bell winch. This significantly increases the operational safety during lifting and lowering of the bell to and from the mating position as the bell remains captured in the bullet catcher throughout the operation.




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The bell is finally mated to the TUP trunk by the hydraulically operated mating split half shell closure clamp (Tube Turn Type). The clamp is fitted with a mechanical safety interlock and a pressure safety interlock. A passive cursor is installed within the gantry frame, located on twin vertical rails bolted to the rear of the bell transfer trolley. The passive cursor captures and locates the bell in a fixed position and travels with the bell up or down the vertical rails, thus ensuring safe transit of the bell from the launch position to below the vessel waterline. Depending on the vessel type and the launch position onboard, the cursor and system rails are removable from the system if required. The rails provided with the system span from the bell transfer trolley down to the skid deck.

The gantry system is also provided with a man-riding hydraulic bell winch, man-riding hydraulic driven clump weight winch and hydraulic umbilical winch.

The hydraulic main bell winch is equipped with both primary and secondary drive motors for launch and recovery of the bell. The bell winch primary hydraulic motor will be the primary means of operating the winch, and the secondary hydraulic motor will be the designated secondary means of operating the winch during launch and recovery. The hydraulic guide wire winch is equipped with both primary and secondary drive motors for launch and recovery of the clump weight. The guide wire winch primary hydraulic motor will be the primary means of operating the winch and the secondary hydraulic motor will be the designated secondary means of operating the winch during launch and recovery of the clump weight. The clump weight winch will act as a further means of recovery in the event of failure of the main bell winch or hydraulic system. This gives 100% contingency in the event of failure. The handling system is provided with suitably rated 55 kW twin hydraulic power units, electric driven 415 volt 3 phase 60 Hz, for operation of the handling system components and winches. The operation of the hydraulic handling system, bell and guide wire manriding winches and umbilical handling winch is from a purpose built air conditioned control cabin, located on the handling system skid adjacent to the umbilical winch, which is located above the main chamber skid.

The Handling System is designed for either Moonpool operation and/or over the side of a suitable vessel or construction barge.

2.7. LIFE SUPPORT CONTROL The Life Support Control Panels are incorporated within the rear section of the DDC1 lower structural element. The Life Support Control Room is fully enclosed at the rear of the structure with external bulkhead walls, roof and floor. The control room is fitted with access doors, emergency kick out panel and external windows. The life support control room is thermally insulated and air conditioned.

2.8. DIVE CONTROL The separate dive control room/project client’s office is located within an ISO type container; thermally insulated and air conditioned. The container is divided internally into two separate compartments to include a project/client office. The container will be outfitted with separate access doors, emergency escape kick out panel and a window will be included in each compartment.




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The container is provided with base castings of a set footprint to allow fixing to the vessel deck or stacking above the machinery container. The top of the containers are fitted with suitably rated pad-eyes for lifting. The Dive Control Panels will be installed within the dive control room section of the container.

2.9. LIFE SUPPORT MACHINERY The life support machinery is housed in purpose built 20ft ISO containers. The containers are provided with top corner castings of a set footprint to allow mating/stacking with the other containers and base corner castings to allow fixing to the vessel deck with standard container twist locks. The top of the containers are fitted with suitably rated pad-eyes for lifting.

2.10. CERTIFICATION AND APPROVAL This system was originally built under Lloyds Approval and Witness Testing Survey. It is not a class approved system.

3.0. THE SATURATION MODULE MAJOR COMPONENT INVENTORY Twin Lock Decompression Chamber 6-man capacity designated DDC1 Main Lock and TUP1

Entry Lock. Twin lock Chamber 3 Man Capacity designated DDC2 and Wet Pot Chamber (attached to

DDC2). In addition DDC2 is outfitted with a designated Medical Bed. Single lock HRC Chamber 9 Man Capacity with floatation. Diving Bell 3 man. Internal volume 4.7 m3 depth rating 300 MSW. Environmental Control System: comprising of 3 x Kinergetics CMU’s Built into the 20ft ISO

Life Support Machinery Containers. Chamber Internal Habitat Conditioning Units Kinergetics HCU’s Installed in the Chambers. Divex Gasmiser: Electric Gas Recovery System P/N A10621 comprising; Electric Gas Booster,

Reprocessing Unit, Control Console Panel, 2 Diver Bell Equipment & Gas Volume Tank Built Into the 20ft ISO Life Support Machinery Containers.

Potable/Sanitary Water System SMP PWU-001 Built into New ISO Life Support Machinery Containers.

Main Electrical Distribution Panel Built into 20ft ISO Life Support Machinery Containers. Divex WHE02 Divers Electric Hot Water Units (Built into 20ft ISO Life Support Machinery

Containers). Emergency Backup Divers heated Stored Water system P/N SMP CVDFS. S098 Built into 20ft

ISO Life Support Machinery Containers. Life Support Control Panels located In a Purpose Built Life Support Control Room located

within the rear section of the DDC1 lower structure. This reduces installation time during mobilisation.

Dive Control Panel (In 20ft Purpose Built Dive Control /Client’s Project Office Container). HRC mating Trunk and Split half shell hydraulic closure mating clamp Hydraulic to TUP 1.

(Tube Turn Type) Hydraulic operated with additional manual operation CW Safety Interlock. Main Umbilical 350 Meter. Mating Interconnecting Spool Pieces between Chambers TUP1 to DDC2, & TUP1 to HRC. Mating Interconnecting Spool Piece TUP 1 to Diving Bell Including Hydraulic Mating Clamp. Sanitary System Sewage Holding Tank. Gantry Type Bell handling launch and recovery system CW Transfer Trolley, Passive Cursor,

Bullet latching mechanism and hydraulic Tele-leg cylinders. Bell Clump Weight (Weight 2400 kg).




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Bell Clump Weight Winch Manriding with Primary and Secondary Hydraulic Drive Motors. Hydraulic Main Bell Winch Manriding, with Primary and Secondary Hydraulic Drive Motors. Hydraulic Main Umbilical Winch CW 350 Meter umbilical, Gas rotary valve and Electrical slip

rings. Twin 55 kW Hydraulic Power Pack Modules.

4.0. DIVING SYSTEM COMPONENTS

4.1. TWIN LOCK DECOMPRESSION CHAMBER DDC1 (6 MAN)/MAIN LOCK AND ENTRY LOCK (TUP1)

The 6 man capacity twin lock living decompression chamber DDC1 is fitted with 6 bunks, medical lock and end manways with internal pressure retaining door.

Two further intermediate manways are available for future use although are not utilised in the proposed configuration.

The entry lock/TUP 1 having 1 x end manway fitted with equipment lock, 1 x top manway for bell mating and 2 x side manways to allow mating of the following additional PVHO chambers:

Twin Lock DDC2 (3 man) Chamber with attached TUP2 wet pot The DDC2 chamber mates with the side mating manway of the TUP1 chamber. Single Lock Hyperbaric Rescue Chamber (HRC) 9 man capacity The HRC mates with TUP1 chamber side mating manway. The positioning of the DDC2/TUP2 chamber will be dependent on the required and agreed configuration of the system on the vessel deck. The chambers are mounted upon individual heavy-duty base frames. The chamber services are pre-piped to and from the Chambers via the local penetrator plates which are also mounted on the base frames. The 6 Man Main Lock Designated DDC1 is outfitted as follows:

Suitably rated Pipe work in Tungum or Stainless Steel Chamber valves (NPT) in either Brass or Stainless Steel Multi-way Electrical & Communications Penetrators Electrical system 24V. DC 1 x Internal Habitat Conditioning Units HCU. 2 x Emergency CO2 scrubbers 1 x Sound Power Phone 1 x Speaker Bull Horn 6 x Call Buttons 1 x Hyperbaric Fire Extinguisher 6 x Hyperbaric Bunk Lights 3 x Hyperbaric Chamber Overhead Lights 1 x Caisson Gauge




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1 x Temperature and Humidity Gauge (Hygrometer) 6 x Bunks Chamber Alloy flooring 7 x Bibs Overboard Dump Mask Connection Points 2 x Bibs Exhaust manifold blocks and 2 x Tescom Back Pressure Regulators 1 x Temperature Sensor 1 x Humidity Sensor Medical Lock with Safety Interlock 2 x Emergency Heaters 1 x Internal CCTV Camera Table

The Entry Lock Designated TUP 1 to SDC outfitted as follows:

Suitably rated Pipe work in Tungum or Stainless Steel Chamber valves (NPT) in Brass or Stainless Steel Multi-way Electrical & Communications Penetrators Electrical System 24V. DC 1 x CO2 Scrubber Primary 1 x Emergency CO2 Scrubber 1 x Heater/Chiller 1 x Emergency Heater /Chiller 1 x Sound Powered Phone 1 x Speaker Bull Horn 1 x Call Button 1 x Hyperbaric Fire Extinguisher 2 x Hyperbaric Chamber Overhead Light 1 x Caisson Gauge Chamber Alloy flooring 4 x Overboard Dump Mask Connection Points 2 x Bibs Exhaust Manifold Block and 1 x Tescom Back Pressure Regulator 1 x Hyperbaric Toilet System 1 x Shower System 1 x Sink 1 x Equipment Lock. (Installed TUP 1 End Manway) 1 x Internal CCTV Camera

4.2. TWIN LOCK LIVING CHAMBER DDC2 (3 MAN) WITH ATTACHED TUP2/WET POT

The 3 Man chamber has a permanently attached spherical chamber (TUP 2.) The manways on the TUP 2 section of the chamber are inter-changeable with removable penetrator plates bolted into position.




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The 3 Man Twin Lock with permanently attached TUP2/Wet Pot outfitted as follows:

Suitably Rated Piping in either Tungum or Stainless Steel Chamber Valves (NPT) in Brass or Stainless Steel Multi-way Electrical and Communications Penetrators Electrical system 24V. DC 1 x Internal Habitat Conditioning Units HCU. 2 x Emergency CO2 Scrubbers 1 x Sound Powered Phone 1 x Speaker Bull Horn 4 x Call Button (TBC) 1 x Hyperbaric Fire Extinguisher 4 x Hyperbaric Bunk Lights 3 x Hyperbaric Chamber Lights 1 x Caisson Gauge 1 x Temperature and Humidity Gauge (Hygrometer) 4 x Bunks one of which is a medical bunk 2 x Bench Type Seats Chamber Alloy Flooring 4 x Bibs Overboard Dump Mask Connection Points 2 x Exhaust Manifold Block and 2 x Tescom Back Pressure Regulators 1 x Temperature Sensor 1 x Humidity Sensor Medical lock with Safety interlock 1 x Heater/Chiller 1 x Emergency Heater /Chiller Internal CCTV Camera Table

TUP2 / Wet Pot outfitted as follows:

Suitably Rated Piping in either Tungum or Stainless Steel Chamber Valves (NPT) in Brass or Stainless Steel Multi-way Electrical and Communications Penetrators Electrical System 24V. DC 1 x CO2 scrubber Primary 1 x CO2 scrubber Emergency 1 x Sound Power Phone 1 x Speaker Bull Horn 1 x Call Button 1 x Hyperbaric Fire Extinguisher 1 x Hyperbaric Chamber Light 1 x Caisson Gauge Chamber Aluminium Flooring 4 x Overboard Dump Mask Connection Points 2 x Exhaust Manifold Block and 1 x Tescom Back Pressure Regulator 1 x Toilet System 1 x Shower System 1 x Sink 1 x Emergency Heaters /Chillers




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Single Lock Hyperbaric Rescue Chamber HRC 9 Man Capacity The HRC can be configured on either of the side interconnecting manways located on TUP1, depending on the clients required layout of the system onboard the vessel. The HRC is fully equipped with a toilet, sink and shower facilities.

The Single Lock chamber is configured as a 9 man Hyperbaric Rescue Chamber (HRC) which in the event of an emergency onboard the vessel, can be utilized to evacuate the divers in saturation under pressure.

The HRC is fitted with an onboard battery pack, sufficient HP emergency oxygen and heliox gas cylinders banks and manifolds, additional flotation buoyancy, bench type seats, medical lock and the necessary safety harness restraints for all 9 occupants.

The Hyperbaric Rescue Chamber is hydraulically clamped to the side mating manway of DDC1 Entry lock/TUP1. HRC outfitted as Follows:

Piping in either Stainless Steel or Tungum and valves in SS (NPT) All Oxygen & Therapeutic Gas Fittings Brass, valves to be Needle type 4 x Chamber Viewports Pressure Retaining Doors on each internal Manway Multi-way Electrical & Communications Penetrators Electrical system 24V. DC Internal Habitat Conditioning Unit. 4 x Emergency CO2 scrubbers 1 x Sound power phone CW Call Generator 1 x Speaker bull horn CW Headset 1 x Call button 1 x Hyperbaric fire extinguisher 3 x Hyperbaric chamber lights 1 x Caisson gauge 0 to 360 MSW 1 x Temperature and humidity gauge (Hygrometer) 3 x Bench Type seats approx size 2000mm x 750 wide. The bench seats will be configured to

allow seating for 9 x evacuees with full safety harness facilities. Chamber aluminum flooring 10 x Bibs overboard dump mask connection points, two manifold blocks and two Tescom

back pressure regulators 1 x Temperature sensor 1 x Humidity sensor Medical lock with pressure Safety interlock 1 x Emergency Heater/Chiller Coil Unit 24V Low light Internal camera Safety overpressure Relief Valve 1 x Hyperbaric toilet system 1 x Shower system




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1 x Sink Battery Pack 24 VDC 72 Hr Duration as per IMCA Internal Switchover panel from onboard 24 Volt battery supply Oxygen makeup and bibs system from 2 banks of the onboard oxygen storage cylinders

fitted with Tescom positive bias pressure sensing regulators HE/O2 distribution from the 2 banks of onboard storage cylinders, fitted with Tescom

positive bias pressure All gas, Fluid Hoses and electrical connectors to the HRC will be a quick connect type for

rapid disconnection in emergency. The interface requirements will be in compliance with IMCA D0-51.

HRC Towing Bridle Chamber External Insulation and Gel Coating HRC marked with International Symbols as per IMCA D0-24 External Floatation Installed on outer bumper frame

4.3. DIVING BELL (SDC) 3 MAN 4.7 M3 INTERNAL VOLUME

The 3 man diving bell has an internal volume of 4.7m3 and is rated for an operational depth of 300 MSW, designed and fitted with a bottom mating manway to enable the bell to be mated to the main chamber entry Lock TUP1 top mating flange.

The SDC is equipped with a bottom internal bayonet type door pressure retaining from both sides. In addition the bell has a side opening manway with internal and external pressure retaining doors. This allows maintenance access to the bell if required whilst in the mated position on the TUP.

The Diving Bell to be outfitted including:

2 x Oxygen Cylinder for O2 make-up with a Tescom Positive Bias Pressure sensing regulator. O2 Injection Panel and External Oxygen Buffer tank Internal Bayonet Bottom Door. Suitable for internal & External Pressure of 30bar Internal and External Side Manway Doors 8 x Heliox Cylinders for Diver 1, Diver 2 and Bellman piped in separate banks, complete with

individual Tescom Positive Bias Pressure sensing regulators on each bank View ports Bell Viewport Secondary Protective Covers Three Diver Internal Gas Distribution Panel, Including Blow down and Exhaust Electrical system main supply 24V DC Bell Onboard Emergency Battery Pack 24V DC, Externally Mounted




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Internal Electrical control panel Main and Emergency supply isolation and changeover Internal Communication Control Panel Oil filled Pressure Compensated Bell External Junction box for the Main Bell Umbilical

Electrical Connections Hot Water Distribution Manifold Hangers for 2 x Diver Umbilicals Internal Hanger for 1 x Bellman’s Umbilical External c/w Quick Release 3 x Seats with Seatbelt restraints Pipe work and valves (NPT) Electrical penetrators communications and power from External Junction Box 1 x CO2 Scrubber Normal Operation 1 x CO2 Scrubber Emergency Operation 1 x Bell Heater CW Isolation Valves 1 x Sound Power Phone c/w Call Generator 1 x Speaker Bull Horn 1 x Call Button 2 x Hyperbaric Internal Lights 3 x Bell External lights individually wired 1 x Internal depth gauge 1 x External depth gauge 3 x Bibs connection points for single hose bibs 1 x 2 Diver Divex Gas Reclaim Bell Equipment.

4.4. DIVE MACHINERY CONTAINER & ENVIRONMENTAL CONTROL (ECU) CONTAINER

The Dive Machinery and Environmental Control (ECU) containers are purpose built 20ft ISO Type containers suitably sized to fit the dive life support machinery and environmental control machinery. The containers are fully outfitted with removable penetrator plates, splash tight doors and integrated strip lighting including emergency lighting. All equipment within the container is piped to independent penetrator plates for connection to various different parts of the system. The containers are thermally insulated and fitted with forced air ventilation blower units. Environmental & Electrical Control Container No 1 Outfitting

The Environmental Control System (ECS) consists of 3 x Kinergetics Model CMU 2.

The units are suitably stacked and arranged in the container. The units will be configured as unit 1, 2 for DDC1 & DDC2 primary operation, Unit 3 will be the standby unit in the event of failure of any one of the primary units. It can be used for the HRC cooling when connected to the system. The system provides automatic control of the temperature and humidity within each chamber.

The interconnecting pipework from the ECS fluid reservoirs to the penetrator plates in the container bulkhead will be hard piped, with suitably rated Tungum or Stainless Steel. The system valves will allow interconnection of all the ECS units to the corresponding chamber Habitat Conditioning Units (HCU’s).




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Connection of the chamber internal habitat conditioning units (HCU) to the individual Environmental Control systems will be via the container bulkhead penetrator plate, utilising suitably rated interconnecting flexible hoses and Quick Connect fittings. Electrical Distribution Panel

The main electrical distribution system is located within a separate section of the container which has been divided by an internal bulkhead. The electrical services from the vessel to the diving system will be terminated at the main electrical distribution panel.

The panel will be fitted with primary, secondary/emergency changeover breakers which are interlocked to allow switching between the vessel supplies or an emergency generator in the event of power interruptions.

In addition the electrical section is fitted with a 20kva 3 phase to single phase 220 volt Uninterrupted Power Supply (UPS) to maintain power to the essential services during power interruptions or changeover between supplies.

NOTE: A separate electrical supply will be required from the vessel to power the electrical diver’s

hot water machine which is rated at 190kW and is located in the dive machinery container.

Potable Water System (Domestic Water)

The SMP electric potable water system will supply hot and cold water for operation at the following levels of performance: Flow Rate Hot Water 0.46 m3 / hour Flow Rate Cold Water 0.46 m3 / hour Water Pressure: 68 bar Outlet Temperature Range 30 to 70 Deg C Storage Capacity Approximately 60 Litres Fresh Water Supply required Minimum 18 Ltr / min @ 2 bar Electrical Power Required 440 volt, 20 amp 60hz

Dive Machinery Control Container No 2 Outfitting Divex P /N A10621 Electric Gasmiser Diver Gas Recovery System (2 Diver Reclaim System)

The system will be provided with an Electric Divers Gas Reclaim System suitable for 2 working divers. Including the following components:

Reclaim Topside Reprocessing Unit Control Console for Dive Control Bell Internal and External Equipment Reclaim Volume Tank Vertical Electric Gas Booster




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Diver’s Emergency Hot Water Reservoir - SMP P/No CVDFS.S098 This consists of a 900 litre potable water vented tank of copper construction. This will be installed in a 50 mm box section protection steel frame with fork lift pockets to allow for installation. The maximum safe ambient working pressure of the tank is 1 Bar. Fresh water supply to the tank is via an input control regulating valve and water level indication is provided. The tank is open vented and is fitted with an anti vacuum valve for protection during operation The potable water is heated to the desired temperature by 9 kW submerged thermostatically controlled heating elements. The tank is fully insulated with rock wool type insulation and a fitted over jacket. The 9 kW immersions heater is installed into the tank and will be controlled by a low level switch that ensures that the power is isolated when the tank is empty or below the preset level.

Emergency Hot Water Reservoir Control Panel

Once the tank is filled with potable water the desired temperature is set on the thermostat “start push button” allows power to the immersion heaters. The thermostat will ensure the desired set point temperature is maintained.

In the event of any emergency or failure of the diver’s primary hot water unit, the potable hot water from the reservoir can be supplied to the divers hot water system manifold via an independent multistage centrifugal pump. The controls for this pump are incorporated into the emergency hot water system reservoir control panel.

Technical Data: SMP Model Ref CE-E-900 Code: HWM-ESH Max Power: 9 kW Voltage: 440V 3 phase 60 Hz or 400V 3 phase 50 Hz (tbc) Current: Panel Load 20 Amps Design Pressure: Vented Design Temperature: 90°C (194°F) Control Temperature: 5 to 75°C (50 to 167°F) Pump Type: Grundfos Multistage Centrifugal Heater Elements: Incalloy 800

4.5. DIVER ELECTRIC HOT WATER SYSTEM

(Divex WHE-02 Unit)

The Divex WHE-02 electric diver’s hot water heaters are rated at 190 kW supplied with dedicated single pressure vessel with over pressurization relief valve. The heater elements in each unit are electrically powered and capable of heating seawater and/or potable water with a flow of 45 LPM. The seawater supply to the unit should be between, 3.4 to 10 bar inlet water pressure.




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The unit will have a temperature range of 0 C to 50 C with +/- 2 c control. The WHE-02 assembly is comprised of a motor, positive displacement pump, heater tank, pipework and a control panel mounted within a robust stainless steel frame. The system requires a constant supply of seawater and runs from a 440–480 V 3 phase 60hz power supply. The output is heated seawater at pressures up to 68 bar and 45 litres/min. The temperature control system of the WHE-02 has been designed to be simple and effective. The unit heats water in the heater tank using five banks of heater elements. These heater banks are controlled with five switches, mounted on the electrical enclosure. The banks of heaters are configured to deliver a variety of heating capacities depending on the combination of banks selected. When all five heater circuits are on, the total output is 190 kW. The appropriate heater circuits must be selected manually according to the relative temperature rise required. A schedule is attached to the front of the control panel door indicating the heater banks to be used for the required temperature rise. The hot water unit shall incorporate the following: Inline local water filtration Electrical isolation control Emergency Stop Button Control Power On Temperature Controller Running Hour Meter Low Water Fault Indicator Over temperature Indicator Pump motor start/stop delay Pump Trip Indicator Fault Reset

Technical Data: Shipping Weight 580 kg Dry Weight 460 kg Power Requirements 440 VAC, 3-phase, 60 Hz, 150-190 kW 210-250 A Input Fluid Fresh water or seawater Input Pressure 3.4 to 10 bar Input Flow 45 liters /min minimum Output Pressure Up to 68 bar Output Flow Up to 45 liters/min Temperature Rise Control Range 0 to 50ºC (32 to 122ºF) Temperature Control ± 1ºC (± 2ºF)

NOTE: An emergency backup unit is provided in the dive machinery control container No 2 which

will provide sufficient Hot water to allow the recovery of the divers to the SDC in the event of failure of the primary hot water units.




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4.6. SATURATION LIFE SUPPORT CONTROL ROOM Life Support Control Panels

The saturation life support control room will be built and installed within the lower Exo-Structure containing the DDC 1 Chamber.

(Refer to Drawing Appendix and 3D model).

This section of the structure is enclosed with bulkhead wall, floors and ceilings with suitable waterproof access and egress doors and opening in the bulkhead walls. The position of windows in the external bulkhead will be defined during the detailed engineering works.

The layout of the Control room in this section of the structure will mean the system can remain hard piped to the DCC1 Chamber and Chamber Skid, thus reducing installation times during mobilisation. The DCC2 and HRC Chambers will be connected at strategically located hard piped penetrator plates, located on the DDC1 skid and on the individual chamber skids. The Saturation Life Support control panels are, pressure tested and internally cleaned for Oxygen and Heliox service. Each control panel is independently piped to the penetrator plates, which in addition includes the local gas distribution and reducing stations. The control room is outfitted with electrical overhead strip lighting, with emergency lighting and a ring main including 13 amp metal clad sockets, situated strategically around the walls of the control room The life support control panel arrangements included within the life support control room will comprise of the following layout facia Depth monitoring system DDC1, TUP1, DDC2, TUP2/

Wet Pot, HRC and mating trunks. Pressurization and Exhaust DDC1, TUP1, DDC2, TUP2 /

Wet Pot, HRC and Interconnecting trunks. BIBs control panels, DDC1, TUP1, DDC2, TUP2 / Wet Pot,

HRC CO2 and O2 analyzer panels, DDC1, TUP1, DDC2,

TUP2/Wet Pot, HRC Calibration gas panel for calibration of the system

analysers O2 injection panels, DDC1, TUP1, DDC2, TUP2 / Wet Pot, HRC Temperature and humidity monitoring , DDC1, DDC2, HRC Communication control panel to all chamber compartments from Helium Un-scrambler

Radios one primary and one secondary unit.




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TV Monitoring System for all chamber compartments. On line Gas storage Distribution and Pressure Reducing panel Life Support Control.

Pressurization Mixes Bibs Mixed Gas. Bibs Oxygen Supply Treatment mix Oxygen makeup

2 x B/A hose line connection for smoke Masks CW communications.

Single Phase Transformers and Low Voltage Power supplies and distribution panels with emergency backup system changeover.

Air conditioning blower unit CW remote Control. Internal Lighting with Emergency Backup Lighting. Entry Doors and emergency kick out panel.

4.7. DIVING CONTROL ROOM & PROJECT / CLIENTS OFFICE CONTAINER

This container is a purpose built 20ft ISO type container suitably sized with an internal bulkhead dividing the Dive Control area from the Project/Clients office. Windows are installed in the external bulkheads The container is thermally insulated and air conditioned in both sections of the container.

The Dive Control panels will be fully pressure tested and internally cleaned for Oxygen and Heliox service. The Dive control panel services are independently piped to penetrator plates which include the local gas distribution and reducing stations. Each control panel is independently piped to the penetrator plates, which in addition include the local gas distribution and reducing stations.

The container is outfitted with electrical strip lighting with emergency lighting and a ring main including 13 amp metal clad sockets situated around the walls of the container.

The Dive Control Panels have the following services included within the system: Depth monitoring system, Bell internal and external Depth monitoring system, Diver 1, Diver 2 and Bellman Depth monitoring system internal, trunk to (transfer lock) TUP1 Pressurization and Exhaust of bell and mating trunk




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On line (gas supply) monitoring for divers CO2 and O2 analyser panel for divers and bell Gas calibration panel Divers Hot water Supply monitoring and control panel Un-scrambler Radio Communication panel for bell and divers with

one primary unit and one secondary unit. On line Gas Storage Distribution and Pressure Reducing Panel for

Dive Control Panel 1 x B/A hose line connection for smoke Masks CW communications Electric distribution panel and isolation panel for total bell system

including emergency back-up system TV Monitoring system for the bell internal Internal main Lighting and emergency lighting Air conditioning blower unit Divers Gas Reclaim Control Panel

4.8. TUP 1 MATING SPOOLPIECE & CLAMP TO DIVING BELL (SDC)

The spool piece CW mating clamp assembly between the diving bell and TUP 1 is positioned on the top manway of TUP 1. This incorporates a hydraulically operated split mating clamp with a pressure safety interlock and mechanical lock. The spool piece will also be equipped with: Pressure and Exhaust penetrator Depth sensor line penetrator.

4.9. SANITARY SYSTEM

The chamber sanitary systems from TUP 1 and TUP 2 will be routed via an external holding tank situated on the main skids. All necessary valves are installed in addition to a dedicated connection in order to allow connection to the ship’s sanitary system or black water tank.

4.10. NEW BUILD GANTRY TYPE BELL LAUNCH AND RECOVERY FRAME ASSEMBLY

The new gantry system was designed by Caley Ocean Systems with third party certifying authority design approvals, testing and certification by Lloyds Register to Lloyds Rules for Lifting Appliances in a Marine Environment.




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The handling system has been design approved by Lloyds for operations in conditions up to Sea State 4. The operational parameters for the bell handling system are indicated later in the text. The system mounts directly onto the lower steel supporting frame structure of DDC1. It can be installed in one independent lift, depending on the capacity of the craneage available on site. Total control of the bell handling system during launch and recovery is from an independent air conditioned control room mounted on the intermediate deck adjacent to the Hydraulic Power units. The design and construction of the handling system allows access from all sides for maintenance and inspection. The gantry is suitably designed and purpose built for lifting the 3 man bell weight. The main bell lift wire sheave is located within the top/centre section of the bell trolley frame to allow lifting and lowering of the SDC. The handling system is fitted with Tele-leg hydraulic cylinders for fine control when lifting and lowering the bell to and from the mating position, independently from the main winch and bell wire. A bullet catcher arrangement complete with latch is provided within the bell trolley of the Gantry frame. The SDC is lifted into the bullet catcher, latched and captured during trolley transfer of the bell to and from the launch and recovery position to the mating position. In addition there will be a sheave and stop-end, to allow lifting and lowering of the clump weight winch. The clump weight wire is double reeved through the clump weight sheaves and terminated at the stop end on the gantry structure. The Gantry trolley arrangement allows movement of the SDC to the launch position over the ship’s moonpool or over the side of the vessel for SDC launch, and retracts the trolley and SDC to the TUP 1 mating position during bell recovery and mating. The Gantry system and teleleg cylinder lift or lowers the SDC to or from the top of the TUP mating flange. The hydraulically activated split mating clamp is operated, to make the sealed connection between the SDC and TUP during diver transfers. It is actuated by controls located on the handling system main control console, the system also incorporates the necessary safety interlocks to isolate the hydraulic system when the mating trunk is pressurised. In addition a mechanical safety interlock is incorporated which needs to be disengaged manually before the clamp can be activated. Operational Conditions of the Bell Launch and Recovery System:

SWL of system (bell + cursor + rope) : 12900 kg Weight of the bell (max. in-air wt.) : 10000 kg Weight of the cursor : 1700 kg Weight of the clump (max. in-air wt.) : 2471 kg Weight of the trolley assembly : 5518 kg Weight of the teleleg assembly : 902 kg Weight of dia 32 hoist rope : 1818 kg Hoisting factor (on lifted loads) : 1.7 Duty factor : 1.2 Max Heel/Trim : 10°/10° Vertical acceleration (applied to dead loads) : 0.5 g




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Stowed Conditions of the Bell Launch and Recovery System:

Static Roll/Pitch : 30°/8° Vertical acceleration : ± 1g Roll acceleration : 0.5 g Pitch acceleration : 0.5 g Wind : 63 m/s

Main Bell Umbilical Winch The hydraulic umbilical winch includes a gas rotary valve assembly, electrical slip rings and a umbilical as indicated below. Main Umbilical Configuration A main bell umbilical of 350 Metres is provided 5 x ¼ Inch Pneumos 1 x ¾ Inch Hot Water Hose 1 x ¾ Inch Reclaim Hose 1 x ½ Inch Divers Gas Hose 1 x 3/4 Bell Blow Down 1 x Power Cable 32mm Dia: comprising 36 x 2.5mm2 Power Conductors 1 x Communications Cable 33mm Dia: comprising 7 x single 1.5mm2, 1 x 1.5mm2 Screen

twisted Quad, 6 x 75ohm Co-Axial pairs, 15 x 1.5mm2 Individually Screened twisted pairs/ TV cables or integrated single Cable

Close mesh polythene monofilament overbraid.

Clump Weight System

A guide wire system is fitted to provide stability to the SDC in water.

This system also acts as a secondary means of recovery of the bell to the gantry bullet catcher and a means of supporting the bell clear of the seabed. The system consists of: -

One manriding hydraulic winch suitably rated for lifting the combined weight of bell and

clump weight to the gantry bullet catcher. The bell is lowered to the mating position by the teleleg system comprising the twin fixed hydraulic Cylinders.

The clump weight also incorporates a diver work basket.

The winch has a spooling device for the wire rope to prevent over-laying of wire rope. The winch primary drive motor is hydraulically driven from the main HPU.

Roll acceleration (applied to dead loads) : 0.25 g Pitch acceleration (applied to dead loads) : 0.25 g Minimum Design Temperature : -10°C




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A secondary hydraulic winch drive motor is installed to allow secondary recovery of the bell in the event of electric/hydraulic power failure. Technical Data Wire Rope Installed: 650 meters of wire rope suitably rated for service. Rated Rope Pull: 9.4 Te Operational Test Capacity: 2.13 Te Emergency Load Capacity: 9.4 Te Static Test Capacity: 14 Te Drum Dimensions: 460 mm dia, Barrel 1030 mm between flanges,

1040 mm dia flanges Storage capacity: 733 m Rated rope speed: 42 m/min (in water below surface)

(with Clump Weight) 25 m/min (at 300 m depth) Rope: 25 mm, MBL 58.3 Te Dyform 34LR grade 1960

Hydraulic Bell Winch

The winch is a hydraulic man riding winch, and is located above the twin lock decompression chamber on the upper skid structure. The winch has a spooling device for the wire rope to prevent over-laying of wire rope. The winch primary drive motor is hydraulically driven from the main HPU. A secondary hydraulic winch drive motor is installed to allow secondary recovery of the bell in the event of failure. Technical Data Rated Rope Pull: 11.4 Te Operational Test Capacity: 17.4 Te

Static Test Capacity: 21.1 Te Drum Dimensions: 608 mm dia barrel 616 mm between flanges

1220 mm dia flanges Storage capacity: 376 m Rated rope speed: 30 m/min

(in water below surface) 18 m/min (at 300 m depth) Rope: 32 mm, MBL 95.8 Te Dyform 34LR grade 1960

galvanised (or equivalent) Remote stop and start of the HPU electric motor (on the power pack) and all hydraulic controls are housed on the hydraulic power pack and in the handling system control cabin which allows complete and safe operation of the lifting and lowering of the bell. Installation of the hydraulic system is geared to be of the shortest duration, with all supply, return and case drain hoses and fittings being of the quick disconnect type suitably rated for service.




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Twin Hydraulic Power Pack Module 55 kW Each The twin hydraulic power pack is sized to suit the requirements of the bell handling system and winches. The required voltage is 440 volt 3 Phase 60 Hz. This twin power pack provides sufficient power to run the system. Technical Data Size: (W x D x H) 3380 x 1000 x 1700 mm Oil capacity: 700 litres / 185 US Gal Motor rating: 55 kW / 75 HP @ 1750 RPM Power Supply: 440v / 3PH / 60 Hz Oil type Mineral oil: ISO VG 37 Cooling water: 60 ltrs /min @ 32°C

Electric Motors Type: TEC Mounting Flange Speed: 1750 RPM Anti – condensation heaters: 110 Volt

Hydraulic Pumps Type: Vickers piston – PVH98QIC Continuous Maximum Pressure: 207 bar Nominal Speed: 1500 rpm Maximum rated Speed: 1800 rpm Displacement: 98 cc/rev Hydraulic Oil Flow: 125 ltrs /min nominal

5.0. CERTIFICATION AND QUALITY ASSURANCE

A full Certification/Quality Assurance Package will be supplied with this equipment. The certification will be in accordance to HSE and IMCA D024 DESIGN for Saturation (Bell) Diving Systems. The certification will be as per The Code of Practice on The Initial and Periodic Examination, Testing and Certification of Diving Plant and Equipment (June 2014) Guidance Note No: IMCA D018. The testing and certification of the saturation Diving chamber Pressure Vessels for Human occupancy (PVHO) will be carried out under Lloyds Register Witnessed Survey.

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