Page 128: of Maritime Reporter Magazine (June 1999)

TRACTOR PINS

FOR TODAY'S TUGS

HYDRAULIC

TOW PIN UNITS with

HOLD-DOWN HOOK

WESTERN MACHINE WORKS 1870 Harbour Road - North Vancouver, B. C. - Canada - V7H 1A1

Phone: (604) 929 -7901 Fax: (604) 929-7951 or (604) 929-5329

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DOfl'T UIORRY ...BE THIRSTY!

All the dependable, pure water you need...AT A PUCE YOU CAN AFFORD NOW!

IF...you let us install what we think are the worlds best Watermakers. FCI Dophin,

Neptune or Posidon Commercial series Reverse Osmosis units that... * Produce 200 to 25,000* gallons per day * Feature comprehensive digital monitoring tor water quality, temperature, operating pressures, salinity control, maintenance scheduling with superior vessels & pumps/motors * Use our exclusive fresh water flush to extend membrane life * Have an extra quiet. 31BSS pulsation dampened high pressure pump that runs lower than 50% of rated output on most commercial units * Over 2006 units installed since 1983 'The Pure Water Solution'

REVERIE OSmOJIS Of

SOUTH nORIDR. IRC. 1-800-255-8115 (954) 462-4114

FAX 1-954-467-6080

E-mail: [email protected]

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MARINE INCINERATORS rV

Therm Tec introduces the Mariner™ line of MARPOL compliant shipboard trash and sludge burning equipment. Designed, built and stocked in the USA. Lower cost than imported units, and engineered for easy operation and maintenance with spares available off the shelf.

Rugged, automated controls and safety features, a size range to suit vessels from crew boats to aircraft carriers, user specified fuel and electrical supplies, weather deck or machinery flat location, and choice of manual or automatic feed make Mariner™ the solution to your shipboard waste processing problem.

Visit our web site www.thermtec.com or call us at (503) 625- 7575, fax (503) 625-6161 or write 20525 SW Cipole road,

Tualatin, OR 97062 to find out how 25 years of experience in incineration technology can work for you.

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LEEVAC

SHIPYARDS, INC.

We Make It Happen! 1

NEW CONSTRUCTION

CONVERSIONS

REPAIRS

DRYDOCKING

GAMBLING VESSELS

INLAND PUSHBOATS

SUPPLY BOATS

SEISMIC VESSELS

BARGES

SPECIALTY VESSELS

J L Hwy. 90 East

P.O. Box 1190

Jennings, LA 70546

PH. 318/824-2210

FAX 318/824-2970

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J

ANCHOR WINCHES

Mooring/Anchoring

Lifting & Lowering

Used/Reconditioned • Sale/Rental

Skagit/Clyde/American/Manitowoc

Lantec Hydraulic Winches &

Power Units

Berger Fairleads & Deckleads

Landing Craft - 56' LCM-6 Twin 8V-71 GM's

W/Steering Kort Nozzles $65,000.00 (Located in Seattle & California)

RASMUSSEN EQUIPMENT CO.

Seattle, WA

Phone: 206-762-3700

Fax: 206-762-5003

WWW.RASMUSSENCO.COM

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BAIER MARINE HATCHES...

THE STRONGEST HATCH TO EVER HIT THE DECK.

Cast Galvanized Steel • Aluminum • Stainless Steel • Bronze • We stock a huge inventory with same day shipping. • Trusted in the Marine Industry for 52 years.

BAIER —^ Company. Inc.

FOR A FREE CATALOG CALL 1-800-455-3917 or visit our website at www.baierhatch.com 16901 WOOD-RED ROAD. WOODINVILLE, WA 98072

Phone: (425) 481-5019 • Fax: (425) 488-2424 • email: [email protected]

Ft. Lauderdale

Chicago

MARINE

INSURANCE

SPECIALISTS

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YACHTS • DEALERS • MARINAS

SIGHTING • TUGS • BARGES

RIGS • CHARTER

FAST RESPONSE QUOIT: LINES

CHICAGO: 888-383-0900

FAX: 312-330-3370

FT. LAUD: 800-330-3370

FAX: 954-525-0588

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A,

SHIPBUILDERS • ARCHITECTS • ENGINEERS

For more information,

Contact:

Bruce Doughty, President

P.O. Box 296

E. Boothbay, ME 04544 (207) 633-6517

At Washburn & Doughty Shipyard we take our commitment to quality seriously. Shipbuilding is a tradition in this region and our employees take pride in their craftsmanship. When

Washburn & Dought boats leave the yard, they are joining a family of boats known for their reliability and durability. (Continued from page 58)

Molten Sulphur Tanker Sails Four

Years Sans Freeze-Ups ups. ControTrace bolt-on thermal maintenance mod- ules are made of a shaped carbon steel tube, contoured to exactly mate with the outside diameter of process pipe. Sections are strapped lengthwise onto the piping, either individually or in heated, multiple element pan- els providing for excellent heat transfer.

ControHeat bolt-on jackets fit closely to valves, pumps, and other process system components. They are made up of patented, aluminum cast-to-fit pieces that match the component precisely. Embedded in the casting is a fabricated, steel, pressure-containing cham- ber through which flows the heating medium — steam, hot water/glycol or hot oil liquid/vapor. Independent pressure boundaries isolate the process stream from the heating medium to eliminate the possibility of cross- contamination.

Together, the ControTrace and ControHeat modules provide an integrated thermal maintenance system for the Sulphur Enterprise. "The success aboard a sulphur transport ship applies directly to land-based sulphur processing, recovery, and transport," says CSI vice president Henry Gaines, "In fact, tanker service is a more demanding test. For sulphur handling today, bolt- on technology is definitely the better choice."

Sulphur Enterprise was built by McDermott Ship- yard, and since entering service in October 1994, the vessel has proven itself a maritime and chemical engi- neering success. According to Mr. Johnston, "The ship and particularly the thermal maintenance system is per- forming better than we ever expected. Sulphur Enter- prise travels faster and discharges cargo faster than anticipated, and it has been really problem-free. For a project of this size and complexity, that's remarkable."

Under long-term charter to Freeport McMoran Sul- phur, LLC New Orleans, the 524 ft. (159.7 m) Sulphur

Enterprise is one of 16 operational molten sulphur tankers in the world.

Aboard the ship, four heated, fiberglass-insulated steel tanks in individual holds each contain about 6,000 tons of molten sulphur. They are filled and emptied through 1,345 ft. (410 m) of pipe controlled by approx- imately 35 wafer or butterfly valves. Like the big tanks, the transfer pipes and valves must be tempera- ture controlled at all times to keep from freezing shut.

The ship maintains its hectic schedule with no down- time for thermal system maintenance.

Sulphur remains liquid at temperatures from 240 to 310(F, but quickly increases in viscosity above 320(F and freezes at 240(F. The bolt-on thermal maintenance system of Sulphur Enterprise is designed to maintain its cargo at 278(F throughout loading, transit, and dis- charge. "We're like a great, big floating thermos bot- tle," says chief engineer Rick King. "If we allowed this cargo to freeze-up, we'd be a long time getting it mov- ing again."

The thermal maintenance system aboard the Sulphur

Enterprise, designed by CDI Marine Company in Jack- sonville, Fla., uses two hot oil circuits at 425 and 320(F.

When the ship is underway, the primary circuit is heat- ed to 425(F by the exhaust of the 9,840 hp Wartsila diesel powerplant. Alternatively, an auxiliary boiler heats the first oil circuit when the Sulphur Enterprise is in port or if more heat is needed. As a safety feature, the high temperature system is designed to dump excess heat into the ocean.

Each molten sulphur tank incorporates 2,200 ft. (670 m) of oil-circulating coils to keep the contents fluid.

Maritime Reporter/Engineering News