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<strong>Anti</strong>-<strong>Heeling</strong>-<strong>System</strong><br />
<strong>Anti</strong>-<strong>Heeling</strong><br />
<strong>System</strong> <strong>AHS</strong><br />
The <strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> <strong>Anti</strong> <strong>Heeling</strong> system is basically designed to keep any kind of ships, barges, docks or rigs<br />
upright resp. even keel.<br />
The design is according to the latest technology, and satisfies the standards of all major classification societies.<br />
The system designed as a modular construction principle and contains all necessary components, which are needed<br />
for reliable, long lasting and high efficient operation.<br />
The <strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> <strong>AHS</strong> <strong>Anti</strong>-<strong>Heeling</strong> <strong>System</strong> provides manual and automatic heel correction for keeping the<br />
ship upright during cargo operation in harbor.<br />
The system operates independent from the ballast system. The heel measured by an inclinometer generates a<br />
response of the automatic anti-heeling system to right the ship.<br />
The actual heel is indicated on the panel. The anti-heeling control is integrated in the ballast control station.<br />
The <strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong>-<strong>AHS</strong> is designed according the GL rules, and type approved by the GL (Germanischer Lloyd).<br />
Why <strong>Anti</strong>-<strong>Heeling</strong>-<strong>System</strong> ?- What is <strong>Anti</strong>-<strong>Heeling</strong>-<strong>System</strong> ?<br />
When the ship tilts on any of its sides i.e. port or starboard and doesn’t return back to its upright position,<br />
it is known as heeling of the vessel.<br />
<strong>Heeling</strong> is unsafe for ship, its machineries and people onboard. The main reasons of ship’s heeling are<br />
strong winds, hard and speedy turns and uneven cargo loading.<br />
Out of the three reasons, the most common cause is uneven cargo loading and unloading.<br />
The <strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> anti heeling system of a ship automatically detects the heeling angle of the ship<br />
and compensates the same.<br />
This allows the vessels to have continues loading and unloading cargo operation without stopping in<br />
between for list correction. This saves considerable amount time on the port.<br />
In this system, ballast tanks are internally connected to each other by means of pipe lines, automatic<br />
valves and control systems. When the ship heels to any of the sides, the heeling sensor (Inclinometer)<br />
sends the signal for change of ships angle with respect to the ship’s upright position to the master control<br />
panel. This change in heeling angle is compensated by methods of auto transferring the water from the<br />
heeled side to the other side of the ship, making the vessel upright.<br />
Level control switches are also installed in the ballast tank involved with the anti-heeling system to avoid<br />
low level or over filling and hence over pressurizing of the tanks.<br />
The pump system consists of electrical motor driven water pump, which can be a reversible or non<br />
reversible pump, connected with remote controlled valves that can direct ballast water flow in between<br />
the tanks.<br />
<strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> GmbH - Konsul-Smidt-Str. 8U, 28217 Bremen - Amtsgericht Bremen HRB 27110 HB ⋅ Geschäftsführer: Michael Borchers<br />
�+49 (0) 421 877 54 40 � +49 (0) 421 877 53 95 homepage: http://www.weser-flow-control.com e-mail: info@weser-flow-control.com<br />
Bremer Landesbank (BLZ 290 500 00) 10 52 37 50 02 S.W.I.F.T.-Code BRLADE22 IBAN-Nr. DE84 2905 0000 1052 3750 02
Typically layout of a <strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> <strong>Anti</strong>-<strong>Heeling</strong>-<strong>System</strong><br />
Schematic system overview<br />
Main <strong>Control</strong> Cabinet<br />
M o to r S ta rte r<br />
Motor Starter Cabinet<br />
<strong>Anti</strong> <strong>Heeling</strong> Pump<br />
◊ Main control cabinet<br />
◊ Local and remote operator panel<br />
◊ Tank level sensors<br />
◊ Remote controlled valves<br />
◊ Motor starter cabinet<br />
◊ <strong>Anti</strong> heeling pump<br />
<strong>Anti</strong>-<strong>Heeling</strong><br />
<strong>System</strong> <strong>AHS</strong><br />
L I<br />
L I<br />
Remote controlled Valves<br />
* Cables and pipes are not in scope of supply<br />
<strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> GmbH - Konsul-Smidt-Str. 8U, 28217 Bremen - Amtsgericht Bremen HRB 27110 HB ⋅ Geschäftsführer: Michael Borchers<br />
�+49 (0) 421 877 54 40 � +49 (0) 421 877 53 95 homepage: http://www.weser-flow-control.com e-mail: info@weser-flow-control.com<br />
Bremer Landesbank (BLZ 290 500 00) 10 52 37 50 02 S.W.I.F.T.-Code BRLADE22 IBAN-Nr. DE84 2905 0000 1052 3750 02<br />
15"<br />
17"<br />
TouchTouchpanelpanel<br />
M o to r Sta rte r<br />
L I<br />
L I<br />
15"<br />
17"<br />
TouchTouchpanelpanel<br />
Emergency operation<br />
Remote Operator Panel<br />
Tank Level Sensors<br />
for valves (Item No 3.2)
Main <strong>Control</strong> Cabinet with local operator panel<br />
<strong>Anti</strong>-<strong>Heeling</strong><br />
<strong>System</strong> <strong>AHS</strong><br />
The main control cabinet for the anti heeling system is designed for wall mounting. The base frame is welded<br />
steel framework which is covered with sheet metal cover plates. The doors are detachable hinged and equipped<br />
with a door looking system. All local operating devises are mounted on the front door. The inlet for cables and<br />
pipes is from the bottom. Pneumatic or hydraulic needed parts are installed in a separated compartment.<br />
Basically is the cabinet for this application equipped with following components:<br />
<strong>Anti</strong> <strong>Heeling</strong> <strong>Control</strong> Cabinet wall mounting type.<br />
• Main switch assembly with terminals and circuit breaker<br />
• Motor starter combinations for the remote controlled valves<br />
• PLC computer control unit (for all automatic control functions)<br />
• PLC <strong>Control</strong>ler with MODBUS Interface.<br />
• Software package for pump(s) and valve control.<br />
• Software package for stability test.<br />
• I/O-modules to link controls and commands from and to the control computers.<br />
• Local operation panel with:<br />
o Local/Remote selector switch (key switch)<br />
o Indication lamps local/remote operation<br />
o Auto/Manual mode selector switch<br />
o Indication lamps for auto /manual mode<br />
o Start / Stop push buttons<br />
o Delay time selector for setting the start sensitivity<br />
o Pre-Heel selector for setting an pre heel angle to Portside or Starboard.<br />
o Status indication of pumps and valves.<br />
• Interface for data transmission Interface MODBUS Ethernet TCP/IP.<br />
• Interface (hardwired) to remote operator panels via terminals.<br />
• Interface (hardwired) to motor starter cabinet, via terminals and cables.<br />
• Inclinometer giving calibrating input into the heeling control system. Mounted into the control<br />
cabinet or in arrangement near control unit rigid to the ships structure.<br />
Technical data of Cabinet<br />
Dimensions: Beam 800mm,height 1000mm,depth 350mm<br />
Painting: Munsell 7.5BG7/2<br />
Material: steel<br />
Protection: IP44<br />
Weight: Approx. 210KG<br />
Inlets: Cables from below<br />
Power supply: ~3AC/PE, 440V 60Hz, <strong>Control</strong> voltage: 24VDC<br />
Consumption: Power approx. 1,4KVA (average consumption)<br />
(data can change in dependency of changing the amount of actuators and auxiliary components)<br />
<strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> GmbH - Konsul-Smidt-Str. 8U, 28217 Bremen - Amtsgericht Bremen HRB 27110 HB ⋅ Geschäftsführer: Michael Borchers<br />
�+49 (0) 421 877 54 40 � +49 (0) 421 877 53 95 homepage: http://www.weser-flow-control.com e-mail: info@weser-flow-control.com<br />
Bremer Landesbank (BLZ 290 500 00) 10 52 37 50 02 S.W.I.F.T.-Code BRLADE22 IBAN-Nr. DE84 2905 0000 1052 3750 02
Remote operator panel<br />
<strong>Anti</strong>-<strong>Heeling</strong><br />
<strong>System</strong> <strong>AHS</strong><br />
The main control cabinet is designed with a local operator panel which allow all operations locally. For<br />
remote operations from the decks office or wheelhouse is a separate operator panel(s) is supplied. This<br />
panel is basically designed for flush mounting into an existing console or panel. All operating devises<br />
are mounted on anodised aluminium front plate, the device allocation and designations are permanent<br />
printed. The multi core cable connection is via terminals. Basically is the panel equipped with following<br />
components:<br />
Remote operation panel with:<br />
• Anodised aluminium front plate 250mm x 500 mm (hxb), depth approx. 120mm, protection degree<br />
is IP22 (front)<br />
• Local/Remote selector switch (key switch)<br />
• Indication lamps local/remote operation<br />
• Auto/Manual mode selector switch<br />
• Indication lamps for auto /manual mode<br />
• Start / Stop push buttons<br />
• Delay time selector for setting the start sensitivity<br />
• Pre-Heel selector for setting an pre heel angle to Portside or Starboard.<br />
• Status indication of pumps and valves.<br />
• 10,4” TFT colour touch panel.<br />
• Interface (hardwired) to main control cabinet via terminals.<br />
<strong>Weser</strong> <strong>Flow</strong> <strong>Control</strong> GmbH - Konsul-Smidt-Str. 8U, 28217 Bremen - Amtsgericht Bremen HRB 27110 HB ⋅ Geschäftsführer: Michael Borchers<br />
�+49 (0) 421 877 54 40 � +49 (0) 421 877 53 95 homepage: http://www.weser-flow-control.com e-mail: info@weser-flow-control.com<br />
Bremer Landesbank (BLZ 290 500 00) 10 52 37 50 02 S.W.I.F.T.-Code BRLADE22 IBAN-Nr. DE84 2905 0000 1052 3750 02
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