m_e_control_sys b&w

8/8/2019 M_E_Control_Sys B&W

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MAIN ENGINE PNEUMATI

V.I.T. 253

Actuator 711 G F

P1

2 52

1 For elect.Gov.

128 PS58

Fuel pump 2 Alarm S.P. 0

12 11 Em'cy shut d

G 253

stop max. F

Elect.Gov. FO Cut 2

Actuator PS60 F 3

G V5

51 268 42 Em'cy

298 253 127 Shut down

G 734

49 F 2

1 x 3

40 Plugged

48 281 Set.point

294 V12 2 3 1 S9 40 1sec. (plan)

set.o.5 Mpa

RemoteB A

P A "P" R1 A B

295 A

Control S6 Emergency P1

icator 53 Cont.position 106 41 z

727 Out1 Out2 for emergency 253 Emergency Panel 33 32 Set.Point

V 20 296 S.P. 0.3Mpa 66 1sec.(plan)

PS 50 Gin Remote Stop Ahead

Emergency F 65 66 Astern 23 31

P1 A

Set.point 29

100 6sec. A

728 Start p 55

B A B 53

1 P A P1 A 67

B 30

Cont.Position

for Remout

101 102 103 104 105 S.P. 0.2 Mpa A A A

Emergency ConsolePS67 V1 V2 V3

24 P1 Stop Ahead P1 Astern P1

ECB

Control Engine Maneuv. Control Gov. 83 84 86

Position Telegraph Handle Unit Unit


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Speed Signal DESCRIPTION

to Governor

1 Ball Valve

For manual cutting-off control air supply.

2 Pressure switch

For low pressure alarm if the control air su

W/H 3 Ball Valve

Eng. Stop For manual cutting-off of air to exhaust val

Telegraph Start 6 Pressure gauge

Ahead Indicates control air supply pressure.

Astern 7 Magnetic switch

Activated when reversing cylinder (13) is i8 Magnetic switch

Activated when reversing cylinder (13) is i

9 Ball Valve

Pneumatic Signal For manual blocking of air supply to air cyli

Electric Signal 10 Two-position,Three-way valve

Remarks Leads air to reversing cylinders(13) and (5

The Dawing shows the System 11 Two-position,Three-way valve

in following conditions: Leads air to reversing cylinders(13) and (5

1) Stop and ahead position 13 Air cylinder

2) Control Room control Reversing the roller for the fuel pump to A

3) Pneumatic Pressure on 16 Ball Valve

4) El Power on For manual cutting-off safety air supply.5) Main startingn Valve in service 17 Pressure switch

For alarm if safety air suuply pressure is to


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ONTROL SYSTEMSafety relife Valve

Set.Point 2.1Mpa.

137

av.air 121r 118 Blocked S4

Maine starting 120 301

Valve Service S3 302

Exhaustr Valve

Open125 59

26 Open Close1 251 19 16

Starting Air 12 G

Distributor 2 58 G 60

F F Safety Air

126 1 4 2 27 277 Supply 0.7Mpa

2 PS54 17 Clean and dry Air

12 14 Alarm safety Air

117 1 Set. Point 0.56Mpa

Starting

Valve 7 8

REVERSING AH. AS.MECHANISM S7 S8 136

13 F PS10

Alarm

9 G Set.Point

251 0.56Mpa.

138

54 57

310 Starting Air Distributor G

292

12 2 52 735 736 Z F

11 R2 277

1 2 AH A

S77 S88 2 89 P2 Z 70

12 1 293 Spring Air

AS R2 A 6 Supply 0.7Mpa

P2 Clean and dry Air

251 1

A G

276 2 F G 50

P1 1 1 51 F

20 Control Air

1 115 21 2 Supply 0.7Mpa

Turning Gear PS52 Clean and dry Air

Alarm Control Air supply

0 S15 Engaged Set.Point 0.56Mpa

S27

270 116

Fly Wheel PANEL 1

20 L

40L


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20 Air receiver 40L

Reduces time lags in the maneuvering system.

21 Drain valveFor draining off water from the maneuvering system.

essure is too low 23, 29,30,31,32,103,128 Double non-return valve

26 Two-position,Three-way valve

Prevents air inlet to starting air distributor in case of leaking main starting valve

27 Two-position,five-way valve

Controls the main starting valve (open or close)

32 Throttle non-return valve

AD position. Delays venting of the poilt signal to valves (26),(27),(292) and (293).The delay is adjustable. The purpose of this delay is to ensure that the valve(32).

RN position. Delay the timing of starting-air cut-off and extend the period of starting-air supply when changing

to fuel oil-run from starting-air cut-off at the starting of engine.

3). This ensures a good start of the engine. Delay about 1 second.


eversing to AHEAD position. Leads pilot signal to valves(26),(27),(292) and (293) when turning gear is disengaged.

40 Two-position,Three-way solenoid valve

eversing to ASTERN position Leads the pre-set pilot signal to (52) during ASTERN running.

41 Switch

or ASTERN,respectively. Give signal to maneuvering system when the change-over mechanism is in remote control mode.

42 Elect. Governor actuator

Controls the amount of fuel injected.48 Switch

Reset shut-down function(in safety system) when regulating handle is in STOP position during E/S emergency control.


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Controls the time delay of the pilot signal to actuator (52).

51 Pressure gauge

Indicates the control pressure to actuator (52).

52 Actuator

Adjust the fuel injection lead.

53 Regulating valve

Supplies control pressure to actuator (52).

57 Air cylinder

Reverses the starting air distributor from AHEAD toASTERN and vice versa.

83 Pressure switch

Control position for remote. Set point 0.3 Mpa.84 Two-position,Three-way solenoid valve

Gives air signal when STOP is ordered during bridge control.


Gives pilot signal to valve (10) when AHEAD is ordered during bridge control.


Gives pilot signal to valve (11) when ASTERN is ordered during bridge control.


Leads pilot signal to valve (33) when START is ordered during bridge control


Leads air to the emergency control system or to the remote control system, respectively.

101 Two-position,Three-way valve, hand operated

Leads pilot signal to valve (33),(102) and (117) and supply air to valve (105) when actuatedduring E/S emergency control.

Gives combined START and STOP signal when actuated during E/S emergency control.

102 Two-position,Three-way valve, hand operated

Leads pilot signal to valve (117) and supply air to valve (105) when actuated during E/S emergency control.


Keeps the AHEAD or ASTERN signal actuated for about 6 seconds after START during E/S emergency control.

105 Two-position,five-way valve, hand operated

Leads pilot signal to valves(10) or (11), corresponding to order (AHEAD) or (ASTERN), when reversing

during E/S emergency control.

106 Pressure switch

Gives signal to maneuvering system when Engine is in E/S emergency control.

115 Two-position,Three-way valveBlocks the start possibility when the turning gear is engaged.

116 Switch

Gives signal to lamp on main control console if turning gear is disengaged.


Activates the starting air distributor when STOP signal is received.

118 Shut-off valve

For manual cutting-off of air to starting air distributor.

120 Switch

Gives signal to lamp on main control console when main starting valve is in service position.

121 Switch

Gives signal to lamp on main control console to indicate when main starting valve is blocked.

125 Air receiver 20L

Reduces time lags in the safety system.

126 Drain valve

For draining off water from the safety system.


Activates puncture valve on fuel pumps when shut-down signal is given (from safety system).

136 Pressure gauge

Indicates spring air supply pressure.

137 Non-return valve

Prevents back-flow of spring air from exhaust valve.

138 Pressure switch

For alarm if air spring supply pressure is too low.Alarm point 0.55Mpa.

251,253 Test cock.

267 Pressure switch

For alarm when shut-down funtion works.Set point 0.3Mpa.

268 Root cock

270 Switch


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Gives signal to lamp on main control console if turning gear is engaged.

6,277,302 Line filter


Delays ventimg of the pilot signal to valve (117). The delay is adjustable.

9,295,296 Flexiable air hose

292,293 Two-position,Three-way valve

Prevents reversing of starting air distributor when starting air is supplied.

294 Reduces valve witw pressure gauge

Regulates the pre-set pilot signal to (52) during ASTERN running.

298 Pressure switch

Gives signal in to remote control system when STOP signal air is received.

301 OrificeFor sialing air of exhaust valve.

711 Pressure transmitter

Give the scavenging air pressure signal to elect. Governor.


Controls air to actuators on cylinder lubricators in accordance with load change of the engine

728 Ball valve

For manual cutting-off of cylinder lubricator control air supply.

734 Quick release valve

Quickly release STOP signal air.

Switch

Give signal to remote control system when starting air distributor is at AHEAD.

736 SwitchGive signal to remote control system when starting air distributor is at ASTERN.

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