af05-tech.02 r00 - rana af05 modular saturation diving system - technical data sheet

8/12/2019 AF05-TECH.02 R00 - RANA AF05 Modular Saturation Diving System - Technical Data Sheet

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TECHNICAL DATASHEET Doc. No. AF05-TECH.02

AF05 MODULAR SATURATION DIVING SYSTEM Rev. 0 Page 1 of 24

This document is the sole property ofRANA. It must not be reproduced or transmitted to others without written authorisation .

AF05 MODULAR SATURATION DIVING SYSTEMTECHNICAL DATASHEET

Doc. No. AF05-TECH.02

ISSUE

RANA DIVING S.p.A.

Viale A. Vecchi 7, 48122 Marina di Ravenna (RA), Italy

Tel: +39 0544 530742 - Fax: +39 0544 531015 - email: [email protected]

0 20/04/11 Final issueSurname

Bertozzi N.

Surname

Buffa E.

Surname

Buffa E.

Rev. Date DescriptionPreparedby TEC

Checkedby RTEC

Approvedby AU


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TABLE OF CONTENTS

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1 AF05 MODULAR SATURATION DIVING SYSTEM OVERVIEW

1.1 FOREWORD

Rana Diving S.p.A., based on nearly half century of diving activity, and the deep experienceof the actual Managing Director Mr. Enrico Buffa (previous diving systems designer andshearholder of Drass S.p.A.) decided to design and build on its own a Modular SaturationDiving System, denominated AF05, to be the most advanced in the world because so far noany system on the market is able to satisfy the following requirements which are the basicfeatures of the new AF05:

To be composed by container shaped modulus with twist-lock corners in order to beshipped worldwide by container ships and transported by road within the truck size.

To be installed on board of vessels of opportunity within three days without the needof counter basement.

To be suitable for installation on a vessel without moon pool: with the diving belldeployed aside the vessel and the HRC to be self launched from the same side (seeconfiguration 1)

Configuration1


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To be suitable for installation on a vessel with moon pool: with the diving bell

deployed through the moon pool and the HRC to be self launched aside the vesselwithout closing the onboard longitudinal passage from stern to bow (seeconfiguration 2).

Configuration 2

To be suitable for installation on a vessel with moon pool and side defences (up to 3mhigh) without the need of mezzanine deck and without closing the onboardlongitudinal passage from stern to bow (see configuration 3).

To have an HRC (Hyperbaric Rescue Chamber) self launching free fall type, fullydedicated to the rescue operation without the double use as decompression chamberas requested by OGP


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Configuration 3

1.2 NEW AND INNOVATIVE DESIGN FEATURES

In order to fulfil the above requirements, the following innovation has been introduced in thedesign of the AF05:

In order to increase the DDC ergonomics and fit a chamber with a diameter of2,200mm inside a standard container, the chamber entrance hatch has been locatedout of the centre of the dished end and fitted with internal and external door in orderto use the same for three purpose:

- Entrance & exit of the personnel in sat. (every 28 days)

- Material-lock- Food-lock (with the internal reduction plug for gas saving)


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With this solution we have no food-lock installed on the cylindrical side of the

chamber protruding out of the container size, we have more space in the dished endto install the chambers penetrators in order to have the majority of the valves easyoperated from the inside of the container.

In order to install the Sat. System on board in less than three days we installed mostof the ancillary equipment in the same container of the main equipment, for examplethe ECUs (Environmental Control Units) are installed in the same container of eachchamber, the two hydraulic power-packs are installed in the same winches container:in this way all the piping are pre-assembled and the pipe fitting activity is neglect-ableduring the installation on board.

To speed up the installation on board the modules composing the system are mostly

connected by corner twist-locks limiting the bolted connection to the minimum (justthe gantry connections).

The umbilical winch has been substituted by a suitable sheaves group with constanttension working mode and umbilical collecting cage in order to avoid rotatingcouplings for gas & water and sliding electric contact both always problematic(leakage, corrosion and bad signals).

The HRC is self launching, free falling with spherical head (torpedo shape) in order todive in the water with soft impact and come back to the surface far away from thesinking vessel. This system is the more safe because the frame supporting the HRC

is simply lifted up by two telescopic rams giving an inclination of 40 to the HRC to belaunched without problems even with the ship listed up to 20 in the wrong direction.The launching does not depend on davits e/o other types of handling systems withwire ropes that can be entangled in the dramatic phase of ship sinking. (Statisticallymost of the casualty in abandon ship operation are due to lifeboats entangled in theirown handling systems).

The HRC has all the penetrators and valves on top, protected by a grating which canbe operated even in the towing phase by personnel standing on top. A specialfood/material lock is located vertically on top in order to be used also during thetowing.

The ECUs (Environmental Control Units) are of the completely external type (nooperation by the diver inside the chamber). They are fitted with double soda limefilters: one on duty and the other changing the soda lime. The system is controlled bya PLC and keeps automatically the temperature and humidity pre set.

1.3 TECHNICAL SPECIFICATION

Working depth: 300mClass: ABS American Bureau of ShippingDivers in saturation: 15diversDivers in bell: 3 (2 divers + 1 bellman)

Temperature condition: -10C to +50CSea state: Beaufort n 6


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2 MODULUS 01 Hyperbaric chamber ALPHA (3 mEn) with accessories in 40container

Modulus 1 is a triple lock skid mounted and insulated saturation chamber coupled with anECU system. In particular it consists of:

Steel frame ALPHA Chamber Chamber Environmental Control Unit (ECU)

2.1 STEEL FRAME

40 standard high cube steel frame.

2.2 ALPHA CHAMBER

The decompression chamber designed ALPHA is one of the two chamber models whichare included in the Modular Saturation Diving System AF05.

ALPHA Chamber consists of 3 locks: one (1) living locks fitted with 3 beds and a table, one(1) toilet locks, one (1) Transfer Under Pressure lock (TUP) which allows the connection

between system and bell.

The main design details of the ALPHA chamber are listed in the table.

Overall external length 8100mm

Overall external width 2300mm

Overall external high 2500mm

Internal diameter 2156mm

Chamber weight (fittings included) ~19000kg

Maximum working pressure 31.4bar

Hydraulic test pressure 44.9bar

Living lock internal volume 13m3

Toilet lock internal volume 7m3

TUP internal volume 8m3


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2.2.1 Main Features

ALPHA chamber is fitted with the following component:

Man ways: one (1) 800mm I.D. man way is located in the TUP lock to allow bellconnection, one (1) 620mm I.D. man way is located in the Living lock to allow manentrance, two (2) 620mm I.D. man ways to allow locks interconnection, two (2)620mm I.D. are located in the TUP lock to allow connection with the other twochambers.

Viewports: one (1) viewport is located in the TUP lock, two (2) in the living lock andtwo (2) in the toilet lock.

Penetrations: stainless steel NPT penetrations are located in the three locks in

order to allow gas and electrical connections.

Insulation: the chamber is externally coated with an elastomeric insulation foamcovered with a protective polymeric sheet (thickness 20mm). The coating is resistantto the aggressive marine environment, to UV and water proof.

2.3 CHAMBER ENVIRONMENTAL CONTROL UNIT (ECU)

The Environmental Control Unit (RANA ECU Model RM-09) is installed with-in the chambersteel frame and therefore is permanently connected to the chamber with steel piping.The ECU has been developed to set a new state of art in the hyperbaric atmosphere

control, complying to the ABS (American Bureau of Shipping) rules for design of saturationdiving systems and the IMCA guidelines for industrial diving.The ECU ensures CO2/odour removal and full automatic control of Relative Humidity (RH)and temperature in the chamber. Filtering canisters have been designed to ensure the mostefficiency and no need of interruptions during soda lime substitution.The system is provided with a PLC (Programmable Logic Controller) that grants full controlof the ECU functions to the supervisors.Even in the unlikely case of a malfunctioning of the PLC it can be easily bypassed, withoutinterrupting operations, giving full manual control of the system to the supervisors.RH/temperature probes are directly installed in the chamber providing a more accuratereading of these two parameters.

ECU Specification

- Number of divers: up to 9- Maximum operating pressure: 31.4bar- Total power requirement: 60KW @ 380-440V 50-60Hz- Hyperbaric atmosphere T range: 20C to 40C ( 1C)- Hyperbaric atmosphere RH range: 40% to 70% ( 2%)- Internal heater power: 21KW- Internal chiller capacity: 29KW- Seawater/freshwater flow rate: 90l/min (with inlet seawater @ 30C)- Blower pump power: 7.5KW

- Circulating pumps power:1KW- Sodalime one filter capacity: 45kg (3 canisters)


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AF05 MODULAR SATURATION DIVING SYSTEM Rev. 0Page 10 of

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3 MODULUS 02 - HYPERBARIC CHAMBER BRAVO (6 MEN) WITHACCESSORIES IN 40 CONTAINER

Modulus 02 is a double lock skid mounted and insulated saturation chamber coupled withan ECU system. In particular it consists of:

Steel frame BRAVO Chamber Side trunk with double bolted flange for the connection with ALPHA chamber

3.1 STEEL FRAME


3.2 BRAVO CHAMBER

The decompression chamber designed BRAVO is the second chamber model which isincluded in the Modular Saturation Diving System AF05.

BRAVO Chamber consists of 2 locks: one (1) living locks fitted with 6 beds and a table andone (1) toilet lock.

The main design details of the BRAVO chamber are listed in the table.










3.2.1 Main Features

BRAVO chamber is fitted with the following component:

Man ways: one (1) 620mm I.D. man way is located in the Living lock to allow HRCtrunk connection, one (1) 620mm I.D. man way is located in the Living lock to allowman entrance, two (2) 620mm I.D. man ways to allow locks interconnection, two (2)620mm I.D. are located in the Toilet lock to allow connection with the ALPHAchamber on one side and an additional entrance on the other side.


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Viewports: one (1) viewport is located in the toilet lock, two (2) in the living lock.

Penetrations: stainless steel NPT penetrations are located in the two locks in orderto allow gas and electrical connections.

Insulation: the chamber is externally coated with an elastomeric insulation foamcovered with a protective polymeric sheet (thickness 20mm). The coating is resistantto the aggressive marine environment, to UV and water proof .

3.3 CHAMBER ENVIROMENTAL CONTROL UNIT (ECU)

The Environmental Control Unit (RANA ECU Model RM-09) is installed with-in the chamber

steel frame and therefore is permanently connected to the chamber with steel piping. TheECU model is the same installed on the ALPHA chamber.


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4 MODULUS 03 - HYPERBARIC CHAMBER CHARLIE (6 MEN) WITHACCESSORIES IN 40 CONTAINER

Modulus 03 is a double lock skid mounted and insulated saturation chamber coupled withan ECU system. In particular it consists of:

Steel frame CHARLIE Chamber Chamber Environmental Control Unit (ECU)

4.1 STEEL FRAME


4.2 CHARLIE CHAMBER

The decompression chamber designed CHARLIE is the same chamber model of theBRAVO chamber but it is not provided with the top man way to the HRC.

CHARLIE Chamber consists of 2 locks: one (1) living locks fitted with 6 beds and a tableand one (1) toilet lock.

The main design details of the CHARLIE chamber are listed in the table.










4.2.1 Main Features

CHARLIE chamber is fitted as the Bravo chamber beside the top trunk and clamping for theHRC mating.

4.3 CHAMBER ENVIROMENTAL CONTROL UNIT (ECU)

The Environmental Control Unit (RANA ECU Model RM-09) is installed with-in the chambersteel frame and therefore is permanently connected to the chamber with steel piping. The

ECU model is the same installed on the ALPHA chamber.


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5 MODULUS 04 - BELL HANDLING SYSTEM WITH ACCESSORIES IN TWO40 AND ONE 30 CONTAINER

Modulus 04 includes the complete bell handling system; in particular it consists of:

A-frame including two basement

Hydraulic power unit and winches container Umbilical powered sheaves

Umbilical cage with 360m of composite umbilical

Anchor weight with sheaves for guide wire

5.1 STEEL A-FRAME

The steel A frame is composed by 6 main items: 2 basement, 2 legs, 1 top frame structureand 1 bell catching frame. These items are completely dismountable in order to allow aneasy transportation and storage.The two basement are connected to the bottom side of the chambers steel frames, thatallows the system to distribute the load through the all plant area, reducing simultaneouslythe A frame structure overall dimension and the required deck load area strength. The twolegs are provided with guiding structures that keep the bell in position during thedeployment operations. The top frame structure is complete with main and clump weightwire pulleys and umbilical roller.

A frame


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The bell catching frame is provided with three hook that secure the bell to the A frame

during the transient movements and the clamping procedures. The deployment structure isdriven by two main hydraulic rams which moves the A frame to full out position inapproximately 40 seconds.

5.2 UMBILICAL POWERED SHEAVES

The bell umbilical is handled by a hydraulically driven sheave, that can be manuallycontrolled by the operator or set in auto-tensioning mode. The umbilical sheaves arepowered by the main power unit.

The umbilical is a Cortland FIBRON model DMU005, length 360m with the following

characteristic:

1 x NB Fibroflex gas hose, MAWP 1000psi,

1 x NB Fibroflex non collapse reclaim hose, MAWP 1000psi,

1 x NB Fibroflex hot water hose, MAWP 1000psi, 1 x NB Fibroflex gas hose, MAWP 1000psi,

5 x NB Fibroflex pneumo hose, MAWP 1000psi, 1 x Comm / Video cable, Part No DC0057, 1 x Power cable, Part No DC0058, Fibre filler elements, Close wave polyethylene monofilament over braid.

5.3 UMBILICAL CAGE

The umbilical handling system do not include a drum but the 360m long umbilical is storedinside a cage that is positioned beside the chambers and just at the bottom of the umbilicalsheaves. This configuration has the quality to avoid any possible leakage/interferencethrough the slip-rings mounted on common drums.

5.4 ANCHOR WEIGHT

The bell handling system is provided with an anchor weight complete with sheaves, that isinstalled on the guide wire line, in order to provide stability to bell. The anchor is also designto give be a stand for the divers during the operation, to support the bell during anemergency recovery with the anchor weight winch and to hold tools and material inside aproper basket installed on itself.


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6 MODULUS 05 - DIVING BELL

The diving bell is equipped for 3 divers, and it is design to withstand both internal andexternal pressure up to the system rating. The bell is externally outfitted with a steel cagethat provide protection for the bell and all the external equipment. The cage is also used asholding point while the bell is connected to the A frame.The bell is design to be negatively buoyant during normal operating condition and positivelybuoyant during an emergency recovery, therefore it equipped with all the necessary systemto release the clump weights and with an umbilical cutter and a wire rope release system, inorder to enable the safe resurfacing during the emergency recovery.

The main design details of the diving bell are listed in the table



Internal volume 5.3m3

Bell weight (cage and fittings included) ~10000kg



6.1 MAIN FEATURES

The bell is f itted with the following component:

Manway:one (1) 800mm I.D. man way located to the bottom to allow access to thebell. Externally clamped type to connect the bell the Alpha chamber TUP andinternally outfitted with a door closing ring nut manually operated and anhydraulically driven door; both withstand internal and external pressure.

Viewports:two (2) viewport are located on the upper half of the bell while other two(2) viewport are located in bottom half.

Penetrations:stainless steel NPT penetrations are located around the bell in orderto allow gas and electrical connections.

Insulation: the bell insulation is made by tiling the hull with HPC blocks. Themechanical resistance and the sealing of the HPC blocks are obtained by coatingone fiberglass skin overall the blocks. The HPC blocks are rigid micro-cellularclosed cells plastic foam. The chemical composition is based on ultra-highmolecular weight polyvinylchloride (PVC), reinforced with cross-linked polyamidewhich results in an extreme high compressive strength resistance.


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Bell external view

Bell internal view


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7 MODULUS 06 - SATURATION AND DIViNG CONTROL VAN 40 CONTAINER

The container module 06 includes the saturation control panel, the diving control panel andthe main electrical power distribution panel. All the three areas shall be isolated from theothers.

7.1 SAT CONTROL

The saturation control is fully equipped with communications, video monitoring, gasanalysis, environmental monitoring to the ALPHA, BRAVO, CHARLEI and HRC chambers.

7.2 DIVE CONTROL

The dive control is fully equipped with communications, video monitoring, gas analysis,depth measuring to the bell. The dive control includes also the control panel of the bellhandling system and bell clamping. The dive control has also direct view over the clampingoperation through a window.

7.3 ELECTRICAL POWER DISTRIBUTION PANEL

The electrical power distribution panel provide power to all the main systems and it includesbatteries to prevent sudden power loss.


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8 MODULUS 07 - HYPERBARIC RESCUE CHAMBER (HRC) WITHACCESSORIES AND LAUNCHING SYSTEM IN 30CONTAINER

The hyperbaric evacuation system is design as a free falling Hyperbaric Rescue Chamber(HRC). The system is capable of evacuate fifteen (15) divers plus one(1) medic and it isdesign for a 72 hours autonomous endurance. In particular it consist of:

Supporting and launching frame Free falling HRC

Launching control console

8.1 SUPPORTING AND LAUNCHING FRAME

The launching system is capable of successfully launching the HRC up to 20 of oppositelist. The system is hydraulically driven and it can be powered by the standard power packunit and during emergency condition by dedicated accumulators.The launching structure can be installed on the Charlie chamber in two possibleconfiguration (moon pool system configuration or aside system configuration). Thelaunching structure is also the transportation support of the HRC.


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8.2 FREE FALLING HRC

The HRC is a single lock chamber, composed by two cylinders with different diameterconnected together with a tronco-conical reduction. The bigger cylinders holds the livingarea with seat and life support facilities, while the smaller cylinders is the access area, withtwo manways and the food lock. Externally there is a steel structure that protects all theexternal outfitting and it improves the hydrodynamic impact of the HRC with the water.

The main design details of the HRC are listed in the table.


Internal diameter (living area) 2000mm

Internal diameter (access area) 1500mm

Internal volume 21m3

HRC weight (external outfitting included) ~17000kg



8.2.1 Main features

The HRC is fitted with the following component:

Man ways:one (1) 800mm I.D. man way located to the smaller elliptical end usefulto access to chamber for maintenance, one (1) 620mm I.D. man way located tobottom part of the access area, clamped type that connects with the Charliechamber.

Viewport: two (2) viewport are located on the upper part of the living area thatremain out of the water while the HRC is floating.

Penetrations:stainless stell NPT penetrations are located around the HEC in orderto allow gas and electrical connections.

Insulation: the HRC insulation is made by tiling the hull with HPC blocks. Themechanical resistance and the sealing of the HPC blocks are obtained by coating

one fiberglass skin overall the blocks. The HPC blocks are rigid micro-cellularclosed cells plastic foam. The chemical composition is based on ultra-highmolecular weight polyvinylchloride (PVC), reinforced with cross-linked polyamidewhich results in an extreme high compressive strength resistance.

8.3 LAUNCHING CONTROL CONSOLE

The HRC launch is control by a local console positioned close by the launching structureitself. It is powered by an emergency accumulator unit.


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9 MODULUS 08 - POWER AND WINCHES UNIT IN 30 CONTAINER

The system is provided with two hydraulic power packs that power all the hydraulic servicessuch as the bell handling system, clamp, winches, etc. Power packs and winches are fittedwithin the same container, thus all their hydraulic connection shall be removed duringtransportation. All the other services are connected to the power packs through aconnection plate in front of the container.

9.1.1 Hydraulic power unitThere are two twin power pack, each consisting in an electric motor driven hydraulic pumpwith a 800 liters oil reservoir. The two packs work one stand-by to the other. Moreover thereis a complete emergency accumulator system that drive the HRC launching operations.

9.1.2 Main winchThe main bell winch is hydraulically powered, it has a double motor (one stand-by to theother) and two fail safe automatic band brakes. The winch has a SWL of 140KN (last layer).The drum has a capacity of 360m non-rotating 32mm wire rope.

9.1.3 Anchor weight winchThe anchor weight winch is hydraulically powered, it has a single motor and two fail safeautomatic band brakes. The winch has a SWL of 75KN. The drum has a capacity of 700m22mm wire rope.The anchor weight winch is also a secondary means to recover the bell up to sea surface.


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10 MODULUS 09 - GAS RECLAIM REPROCESSING UNIT, BOOSTER PUMPSFOR GAS TRANSFER IN 20 CONTAINER

Modulus 09 consists of a 20 container fully equipped with the needed devices in order toreprocess and handle the diving gases. In particular it includes:

One (1) Diver gas reprocessing unit Divex Electric Gasmizer

One (1) Buffer tank to recover exhaust gas One (1) Gas transfer compressor with relevant circuitry and accessories

This container includes also the sanitary hot and cold water system to supply all thechambers services.

11 MODULUS 10 - DIVERS HOT WATER UNIT IN 20 CONTAINER

Modulus 10 consists of a 20 container fully equipped with the needed devices for the hotwater system. In particular it consists of two (2) diesel powered divers hot unit (one on dutyand one back-up)

12 MODULUS 11 - SERVICING CONTAINERS: TWO 20 CONTAINER

Modulus 11 consists of two (2) 20 containers that includes all the spare parts needed to runand maintain the diving system during operations.

13 MODULUS 12 - HRC RECEIVER IN 20 CONTAINER

Modulus 12 consists in a 20 container fully equipped in order to receive the HRC during anhyperbaric emergency evacuation procedure. The following devices are installed in thecontainer:

One (1) Environmental control panel to control all the life support function of theHRC and thus to allow a safe decompression.

One (1) ECU Model RM-09 (same model installed on the ALPHA, BRAVO andCHARLIE chambers).

One (1) Hot water generator with water circulating pump. One (1) gas storage bottle rack. 50m umbilical connecting the HRC panel to the HRC receiver container


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14 PICTURES

ALPHA Toilet lock Detail of Toilet lock

ALPHA TUP Pressure gauges panel Chamber Entry/food/material-lock detail


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Foldable table area in 6 men chamber

Power and winches unit


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