WinGD X92DF, Руководство по эксплуатации

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• Starts step 2 (automatic leakage test):
○ Activates the leakage test active signal from iGPR to PCS and ECS.
• Pressurizes the iGPR piping.
• Monitors the pressure drop in the iGPR piping.
○ Activates the leakage test OK signal from iGPR to PCS and ECS.
○ Deactivates the leakage test active signal from iGPR to PCS and ECS.
• Starts step 3 (flushing):
○ Activates the flushing active signal from iGPR to PCS and ECS.
○ Opens the shut-off valve (CV7285C).
○ Closes the vent valve at the engine inlet (CV7289C).
○ Opens the pressure regulating valve (CV7288C).
○ Opens the shut-off valves (CV7291C, CV7292C) and the vent valves (CV7286C,
CV7287C).
○ Activates the flushing OK signal from iGPR to PCS and ECS.
○ Deactivates the flushing active signal from iGPR to PCS and ECS.
• Starts step 4 (pressurization and stabilisation):
○ Activates the pressure stabilisation active signal from iGPR to PCS and ECS.
○ Closes the vent valves (CV7286C, CV7287C)
○ Starts the pressurization and stabilisation.
○ Activates the pressure stabilisation OK signal from iGPR to PCS and ECS.
○ Deactivates the pressure stabilisation active signal from iGPR to PCS and ECS.
○ Activates the transfer preparation OK signal from iGPR to PCS and ECS.
NOTE: The ECS uses this signal to start the GAV operation.
NOTE: If one of the transfer preparation steps is not successful, the iGPR control
system sends a gas trip signal to the PCS and ECS. Then the iGPR control
system changes to degassing state, refer to
Para 6.6.3 .
6.6.2 Overpressure release state
The iGPR control system automatically starts the steps that follow, if the gas pressure is 0.5 bar
above the setpoint value:
• Opens the vent valve (CV7289C) as long as necessary.
• Controls the pressure regulating valve (CV7288C).
6.6.3 Shutdown on gas operation
The iGPR control system automatically starts different steps related to the conditions.
If you manually start a transfer to diesel operation (refer to section 8.15 Change-over to and
from gas ), or if there is a usual gas trip and the ECS parameter “vent valve active mode” is ON,
the iGPR control system automatically starts the steps that follow:
• Closes the shut-off valves (CV7285C, CV7291C, CV7292C).
• Opens the vent valves (CV7289C, CV7286C, CV7287C).
• Opens the pressure regulating valve (CV7288C).
NOTE: The pressure in the engine gas piping decreases to atmospheric pressure.
X92DF
AA00-8904-00AAA-043A-A
Operation Manual Integrated gas pressure regulation
Winterthur Gas & Diesel Ltd.
- 285 - Issue 002 2020-08