Boiler control specialists
For LNG and other types of steam-turbine vessels, where demands for control-performance are extreme.
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Background
• Texon was founded 1976, located in Malmö/Sweden. From the start the company combined vast competence in
control engineering and combustion process engineering in one organisation.
• A logical evolution of Kockums Marine Process Automation department, an operation which was taken over entirely
by Texon in 1980.
• Texon is still located in Malmö/Sweden, since 1992 at new attractive premises.
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Company business philosophy
• To provide complete turn-key solution packages, from process analysis, system design, hardware and software
supply to installation and commissioning.
• Texon systematically operates in close relationship with ship operators, builders and owners through-out the
projects, always with the objectives to provide a no-fuzz operation.
• In line with our quality and reliability standards, Texon combines the ultimate hardware available with research
and process know-how.
• A stable growth during 21 years of business as an independent operation in this field, achieved by a qualified
and flexible organisation, proves the satisfaction of our customers and is a guarantee that Texon will stay in this demanding business for years to come.
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Qualified know-how development
• Based on reasearch and experience, Texon has over the years consistently upgraded and refined system
performance and reliability, taking advantage of all recent technology available, in combination with highly experienced human resources.
• A great number of marine control systems created by Kockums/Texon during the early years, have been
upgraded to latest specifications, which is an expression of the satisfaction and loyalty our customers pay to our working experience and knowledge.
• Texon has also over the years replaced numerous boiler control systems, supplied by other companies with
inferior knowledge to match the demanding marine market with extreme reliability and turndown requirements.
General on Texon control systems
Redundancy
Fully compliant with DNV regulations, "Instrumentation and Automation", section 2, A500 and beyond.
Hardware
Equipment is fully compliant with the relevant classification society rules.
Man-Machine Interface (MMI)
Adapted for various demands, utilizing all modern and traditional varieties of MMI for no-fuzz operations, maximum ergonomics and rapid accessibility.
Combustion Controls (ACC)
Combustion Controls (ACC)
Combustion Controls (ACC)
Burner Management Systems (BMS)
Burner Management Systems (BMS)
Burner Management Systems (BMS)
Boil Off Gas (BOG) control systems
Boil Off Gas (BOG) control systems
Boil Off Gas (BOG) control systems
Flame monitoring
Flame monitoring
Flame monitoring
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Basic design features
• Rugged design, based on development, design, installation, commissioning and operation of more than 250
marine boilers, of which 20 are dual fired onboard LNG-carriers, over a period of more than 25 years.
• Extensive system funcionality and operators support for start up and any abnormal condition operations.
• Totally integrated functions (no unwanted lead/lag) together with error adaptive parameter settings result in
supreme response at rapid load changes, yet maintaining steady operation at normal conditions.
• Extended turndown capabilities: The control valve is one of the major limiting factors for control system turn down.
Due to careful selection and utilization of high turn down control valves (up to 500:1) and avoiding split range
operation, supreme performance is achieved.
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General
• The combustion control is a fully automatic, compact and reliable combustion control system for dual-fuel boilers
on LNG carriers or single fuel boilers on other types of main steam turbine equipped vessels. The system maintains steam pressure within very close tolerances even during rapid load changes. It governs the supply of fuel and combustion air to the boiler furnace in close accordance with current steam demand, and permits instant and efficient engine control. The air/fuel ratio for optimum combustion efficiency is closely controlled.
• Combustion trim controller is often included in the system to compensate for the (inevitable) inaccuracy in
measurement of fuel calorific values and combustion air mass.
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Steam dump control
• The steam dump control system operates with the steam pressure and LNG-boil off gas flow as process
parameters. The steam dump valve will operate as required in order to maintain a constant steam pressure.
The opening is prevented by condenser safety functions, e g high pressure or temperature.
• The steam dump is also used to maintain a desired cargo tank pressure on LNG-carriers Gas/oil relation
calculator (Dual fuel boilers).
• The "Gas/oil relation calculator" is based on the principle of communicating vessels, i e if one of the fuels is
reduced the other is instantly increased. The Texon-Kockums system keeps track on the actual fuel flow, comparing this with the fuel demand.
• For each fuel, the demand is compared with the actual flow. If one fuel is insufficient, the other fuel will instantly be
added.
• Gas/oil relation calculator can be configurated to burn a minimum amount of fuel oil, if fuel gas is available.
However, in order to meet the operational requirements it is fully selectable. Inputs to gas/oil relation calculator are
fuel demand, actual gas flow, actual oil flow and desired relation between fuel gas and fuel oil.
• By utilizing multiple parameter controllers and thanks to gas/oil relation calculator design, no separate fuel oil boost
controller is required.
• The fuel gas demand signal is corrected by tank pressure controller to maintain tank pressure floating between the
two preset limits.
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Cross limiting
• Fuel oil flow as well as fuel gas flow is limited if the air supply is insufficient.
• The combustion air is limited if the actual fuel flow is insufficient.
• The combustion air is forced to increase if actual fuel flow is higher than the demand.
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Fuel oil flow control valves
• The Texon-Kockums system utilizes control valves with exceptional turn down ratio, up to 500:1. Control valves
usually have a turn down ratio of 50-75:1 and may therefore often require a split range set up using two valves.
Split range operation of control valves is avoided by Texon due to the inevitable difficulties to achieve a well defined
switch between the valves operation ranges.
• The advantages are:
- better control performance
- better reliability
- less maintenance
- lower cost
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Fuel oil flow measurement
The Texon-Kockums system is utilizing the well defined burner pressure/flow ratio as process parameter, rather than differential pressure drop across a fixed or variable orifice.
• Far better signal resolution and accuracy at high turndown operation
• Less sensitivity to transmitter zero drift
• Only one setting for min and max flow, i e not related to number of burners in operation
• Operating on full signal range independent of the number of burners in operation.
Measurement is not affected by fuel oil recirculation, which is important for achieving minimum fuel oil consumption at gas firing.
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Fuel gas flow measurement
The Texon-Kockums system is utilizing the well defined burner pressure drop/flow ratio as process parameter, rather than differential pressure drop across an orifice or venturi.
• Far better signal resolution at burner sequensing conditions, i e firing less than all burners
• Less sensitivity to transmitter zero drift
• Only one setting for min and max flow, i e not related to number of burners in operation
• Operating on full signal range independent of the number of burners in operation.
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Combustion air flow measurement
The Texon-Kockums system is utilizing the well defined burner register draught loss as process parameter, rather than differential pressure drop across a venturi arrangement in F.D. fan duct.
• Far better signal resolution at burner sequensing conditions, i e firing less than all burners
• Less sensitivity to transmitter zero drift
• Only one setting for min and max flow, i e not related to number of burners in operation
• Operating on full signal range independent of the number of burners in operation.
Independent of F.D. fan operating conditions (one fan per boiler or one fan for both boilers).
Basic features
• The Burner Management System is a fully automatic control system for boiler safety and easy burner light up
and shut down.
• Safety functions such as trip of fuel valves for various reasons are integrated in the system, with some critical
sensors duplicated, e g for drum water level.
• Cascade of burners (Automatic start/stop) can be performed by BMS on order from ACC.
• The boilers can be operated from a control room panel or workstation as well as from a local control panel on the
burner platform. Automatic control can be initiated from both panels.
• The system requires no manual operations under normal operating conditions.
Cargo tank pressure control.
• The tank pressure can vary between floating tank pressure setpoints.
• Pressure is reduced by increasing fuel gas firing together with steam dumping or increase of ship speed.
• Pressure is increased by reducing fuel gas firing together with increased fuel oil firing.
Compressor control.
• Compressor capacity is controlled by means of speed and/or inlet vanes in order to maintain fuel gas control
valves within optimum control range.
Basic functions
• Flame scanners for different emission spectras, 200 (UV) and 800nm (IR)
• Floating reference system.
• Flame On and Off time delay.
• Selfcheck
• Scanner failure alarm
Spare parts and service
We can supply our customers with spare parts for 99% of all Texon/Kockums equipment, even for systems delivered decades ago.
In other words; Even after decades of operation our systems can still be serviced in a swift and painless manner.
Texon also performs on-board service whenever required.
LNG ( Liquefied Natural Gas )
Texon/Kockums has since the building of LNG-carriers
"Polar Alaska" and "Arctic Tokyo" 1968, continously supplied
and serviced boiler and boil-off gas control systems for a
number of LNG-carriers.
Our range of products for LNG-carriers include
• Combustion control systems (ACC)
• Burner management systems (BMS)
• Boil off gas controls:
- Cargo Tank Pressure Control
- Low Duty Compressor Control
- Vent mast control
- Fuel gas heater control
- Forcing vaporizer control
- Spray header pressure control
- Spray Control
- Steam Dump System
• Flame monitoring
• General steam plant controls
| REFERENCE LIST Red text = LNG vessel |
| Manufacturer | Hull # | Vessel name | Equipment |
| A.G Weser | 1392 | Damavand | KCC, KBC |
| AESA | 91 | Al Ahood | KCC |
| AESA | 93 | Amoco Milford Haven | KCC |
| AESA | 94 | Amoco Singapore | KCC |
| AESA | 95 | Amoco Cadiz | KCC |
| AESA | 96 | Amoco Europa | KCC |
| AESA | 102 | Amoco Chicago | KCC, KCS, KBC, KFG 300, KBS |
| Akers | 676 | Radney | KCC |
| Akers | 677 | Nor Explorer | KCC |
| Akers | 679 | Sogna | KCC |
| Akers | 680 | Licorne Ocean | KCC |
| Akers | 681 | Beau Rivage | KCC |
| Akers | 683 | Berge Chief | KCC, KBC retrofitted 1999 |
| Bremer Vulkan | 1000 | Alamoot | KCC |
| Eriksberg | 636 | Siljestad | KCC |
| Eriksberg | 694 | Abt Rasha | KCC, KCS, KBC, KFG 300, KBS |
| Eriksberg | 698 | Acropolis | KCC, KCS, KBC, KFG 300, KBS |
| Eriksberg | 699 | Partenon | KCC, KCS, KBC, KFG 300, KBS |
| Gdynia | 536/1 | Omikron Venture | KCC |
| Gdynia | 536/2 | Omega Venture | KCC |
| Götaverken | 869 | Knock Taggart | KCC (Original system) |
| Götaverken | 869 | Knock Taggart | KCC, KBC, KFG400 (Retrofit 1996) |
| Götaverken | 877 | Knock Bennan | KCC |
| Götaverken | 881 | Anastasis | KCC |
| Hamworthy | Udang Natuna | KFG 400 | |
| Harland & Wolf | 1704 | Coastal Corpus Christi | KCC, KCS, KBC, KFG 300, KBS (Original) |
| Harland & Wolf | 1704 | Atlantic Blue | KCC, KCS, KBC, KFG 300, (Retrofit 1997) |
| Harland & Wolf | 1705 | Medusa | KCC, KCS, KBC, KFG 300, KBS |
| HDWK | 59 | Alvand | KCC, KBC, KFG 300 |
| HDWK | 83 | Golar Freeze | KCC, KCS, KFG |
| HDWK | 84 | Hoegh Gandria | KCC, KCS, KFG |
| Hyundai | 7301 | Prosperity | KCC, KCS, KBC, KFG 300 |
| Hyundai | 7302 | Korea Sun | KCC, KCS, KBC, KFG 300 |
| Kawasaki | 1114 | Philip Of Macedon | KCC |
| Kawasaki | 1116 | Olympus | KCC |
| Kawasaki | 1141 | Trade Fortitude | KCC |
| Kawasaki | 1167 | Atlas Pride | KCC |
| Kawasaki | 1177 | Castleton | KCC |
| Kockums | 496 | Coastal Spirit | KCC |
| Kockums | 497 | Golden Spray | KCC |
| Kockums | 503 | Good Champion | KCC, KBC, KFG 400 |
| Kockums | 504 | La Libertad | KCC |
| Kockums | 508 | Safina Star | KCC |
| Kockums | 509 | Safina Salamah | KCC |
| Kockums | 516 | Methane Polar | KCC, KBC, KFG |
| Kockums | 517 | Methane Arctic | KCC, KBC, KFG |
| Kockums | 518 | Salem | KCC, KCS, KBC |
| Kockums | 520 | John A McCone | KCC, KFG 300 |
| Kockums | 521 | JT Higgins | KCC, KFG 300 |
| Kockums | 522 | HJ Haynes | KCC, KFG 300 |
| Kockums | 523 | Sea Power | KCC, KFG 300 |
| Kockums | 524 | Eugenie | KCC |
| Kockums | 525 | Yannis II | KCC |
| Kockums | 526 | Gratian | KCC |
| Kockums | 527 | St Tobias | KCC, KFG 400 |
| Kockums | 528 | Union Energy | KCC |
| Kockums | 529 | London Pride | KCC |
| Kockums | 530 | Mount Cabrite | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 531 | Saint Lucia | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 532 | Anax | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 533 | Jurmo | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 534 | Chevron London | KCC, KBC, KFG 300, KBS |
| Kockums | 535 | Polyanthus | KCC, KBC, KFG 300, KBS |
| Kockums | 536 | Texaco Sweden | KCC, KCS, KFG 300, KBS |
| Kockums | 537 | Turqoise | KCC, KFG 300, KBS |
| Kockums | 538 | Athene | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 539 | Esso Demetia | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 540 | Seal Island | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 541 | Sea Scout | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 542 | Atlanticos | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 543 | Andreas Bonifacio | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 544 | Sea Swift | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 545 | World Summit | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 546 | Sahara | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 547 | Paris | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 548 | Volans | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 549 | World Symphony | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 550 | Tina | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 551 | Stavros GL | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 552 | Sea Serenade | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 553 | Samnanger | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 554 | Mimosa | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 555 | Juno | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 556 | Olympian Spirit | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 557 | Hansa Vega | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 559 | LNG Bonny | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 560 | Berge Broker | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 564 | LNG Finima | KCC, KCS, KBC, KFG 300, KBS, KSC |
| Kockums | 566 | Kraka | KCC, KCS, KBC, KFG 300, KBS |
| Kockums | 570 | Johnson Chemstar | KCS |
| Kockums | 574 | Johnson Chemsun | KCS |
| La Ciotat | 274 | World Resolve | KCC, KCS, KBC |
| La Ciotat | 287 | Alize | KCC, KCS, KBC |
| La Ciotat | 304 | Alta | KCC, KCS |
| Lindö | L18 | Naticina | KCC, KBC, KFG400 (Retrofit 1991) |
| Mitsubishi | 1027 | Land based | KBC, KBS |
| Mitsubishi | 1727 | Alps Maru | KCC |
| Mitsubishi | 1744 | Al Rekkah | KCC, KCS |
| Mitsubishi | 1750 | Hida Maru | KCC |
| Mitsubishi | 1754 | Aiko Maru | KCC |
| Mitsubishi | 1755 | Shiko Maru | KCC |
| Mitsubishi | 1725 | Miyata Maru | KCC |
| Mitsui | 966 | Kosmos Seafarer | KCC, KCS, KBC |
| Mitsui | 995 | Brasilian Splendour | KCC, KCS, KBC |
| Mitsui | 996 | Dena | KCC, KCS, KBC |
| Mitsui | 1112 | Berge Pioneer | KCC, KBC, KFG 400 |
| Mitsui | 1113 | Berge Enterprise | KCC, KBC, KFG 400 |
| Moss Rosenberg | 196 | Norman Lady | KCC, KCS, KFG 300/400 (Original system) |
| Moss Rosenberg | 196 | Norman Lady | KCC, KBC, KCS, KFG (Retrofit 1999) |
| Moss Rosenberg | 198 | Hilli | KCC, KCS, KFG 300 & 400 |
| Moss Rosenberg | 198 | Hilli | KCC, KBC, KCS, KFG (Retrofitted 2000 ) |
| Moss Rosenberg | 199 | Gimi | KCC, KCS, KFG 300 & 400 |
| Moss Rosenberg | 200 | Khannur | KCC, KCS, KFG 300 & 400 |
| Newport News | 613 | Marine Atlantic | KCC, KBC, KFG300, KCS (Retrofit 1995) |
| NKK | 10 | World Lady | KCC |
| NKK | 23 | Tokitsu Maru | KCC |
| NKK | 34 | Titus | KCC, KFG 300 |
| NKK | 35 | Jarmada | KCC, KFG 300 |
| NKK | 39 | KCC | |
| Norwegian Navy | Landbased | KCC | |
| Odense | L18 | Naticina | KCC, KBC, KFG 300 (Retrofit 1991) |
| Odense | 39 | Arietta | KCC, KCS |
| Odense | 40 | Eugenie | KCC, KCS |
| S:t John | 1118 | Entalina | KCC, KBC, KFG (Retrofit 1992) |
| S:t John | 1119 | Erodona | KCC, KBC, KFG (Retrofit 1992) |
| S:t John | 1122 | Errina | KCC, KBC, KFG (Retrofit 1992) |
| S:t John | 1123 | Etrema | KCC, KBC, KFG (Retrofit 1992) |
| Sasebo | 247 | Tonbridge | KCC, KCS |
| SECN | 173 | Southern Sun | KCC, KBC, KFG 300 |
| Setenave | 102 | Berge Banker | KCC, KCS, KBC, KFG 300, KBS |
| Setenave | 104 | Berge Nisa | KCC, KCS, KBC, KFG 300, KBS |
| Setenave | 106 | Settebello | KCC, KCS, KBC, KFG 300, KBS |
| Swan Hunter | 63 | New Resource | KCC, KCS |
| Swan Hunter | 64 | Agios Nikolauo Th. | KCC, KCS |
| Swan Hunter | 65 | Yorkshire | KCC |
| Swan Hunter | 66 | Olympic Splendour | KCC |
| Swan Hunter | 67 | Artemis Garofalides | KCC |
| Swan Hunter | 68 | Equator | KCC |
| Swan Hunter | 98 | Kharg | KCC, KCS |
| Texaco | Texaco Belgium | KCC, KBC, KFG 400 | |
| Uddevalla | 285 | Adna | KCC, KCS, KBC, KFG 300, KBS |
| Uddevalla | 289 | Thorshavet | KCC, KCS, KBC, KFG 300, KBS |
| Uddevalla | 291 | Regina (Alki) | KCC, KCS, KBC, KFG 300, KBS |
| Uddevalla | 294 | Nor Adventure | KCC |
| Uddevalla | 298 | Sea World | KCC, KBC retrofit 1998 |
| Uddevalla | 299 | KCC | |
| Verolme | 816 | Chevron Kentucky | KCC |
| Verolme | 817 | Rudolf Peterson | KCC |
| Öresund | 179 | Antilla | KCC |
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Flame monitoring systems supplied for more than 300 vessels, including those listed below: |
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| Chambord | KFG 400 |
| Chanmont | KFG 400 |
| Chenoncheaux | KFG 400 |
| Chinon | KFG 400 |
| Chun Woo | KFG 400 |
| Dalma | KFG 400 |
| Delta | KFG 300 |
| Fulmar FSU | KFG 400 |
| Nai Matteini | KFG 400 |
| Nai Rocco Paggio | KFG 400 |
| Pollenger | KFG 400 |
| Sola Refinery | KFG 400 |
| Texaco Amsterdam | KFG 400 |
| Queen Elisabeth 2 (QE2) | KFG 400 |
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Abbreviations: |
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| KBC: | Kockums Burner Control |
| KBS: | Kockums Boiler Safety System |
| KCC: | Kockums Combustion Control |
| KCS: | Kockums Controller System |
| KFG: | Kockums Flame Guard |
| KSC: | Kockums Sootblower Control |
Texon Automation
Industrigatan 39
SE 212 10 Malmö
SWEDEN
Phone +46 40 36 28 00
Fax +46 40 21 65 13
E-mail: th@texon.se
VAT reg no: SE 5562 0126 3201
The key company that holds Kockum Sonics, Texon and Polarmarine. All expertise on one place.
With heritage in shipdesign and shipconstruction Kockum Sonics
presents a wide range of marine and industry products.
Polarmarine was established in 1978 and the people behind Polarmarine have been involved with the development and design of tank cleaning machines since 1967.
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