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WinGD X92DF User Manual

WinGD X92DF
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If there is a usual gas trip and the ECS parameter “vent valve active mode” is OFF, or if there is
a gas trip with automatic inerting request, or if there is an engine shutdown, 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).
Closes the master shut-off valve of the FGSS (controlled by PCS).
Opens the vent valve of the FGSS (controlled by PCS).
NOTE: The pressure in the engine gas piping and in the iGPR decreases to
atmospheric pressure (degassing state).
If there is a gas trip with automatic inerting request, the iGPR control system starts the
automatic inerting sequence, refer to Para 6.6.5.
6.6.4 Gas trip with automatic inerting
A gas trip with automatic inerting is necessary in the conditions that follow:
Emergency gas trip switches are active
Gas trip from gas detection system is active
Incorrect gas inlet conditions
Ventilation failure of the double wall pipes.
In these conditions the iGPR control system automatically starts the steps that follow:
Closes the master shut-off valve of the FGSS.
Opens the vent valve of the FGSS.
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 and in the iGPR decreases to
atmospheric pressure.
The automatic inerting sequence then starts, refer to Para 6.6.5.
6.6.5 Automatic inerting sequence
The automatic inerting sequence has the steps that follow:
The engine safety system (ESS) sends a signal to the iGPR control system.
The iGPR control system opens the inert valve in the FGSS.
Inert gas flows through the pipes from the inert valve in the FGSS to the inert gas release
outlet of the engine.
The inert valve in the FGSS closes again after 25 seconds, when the pipes are filled with
inert gas.
If the inerting sequence was successful, the iGPR control system activates the inerting
completed signal from iGPR to PCS.
X92DF
AA00-8904-00AAA-043A-A
Operation Manual Integrated gas pressure regulation
Winterthur Gas & Diesel Ltd.
- 286 - Issue 002 2020-08

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WinGD X92DF Specifications

General IconGeneral
BrandWinGD
ModelX92DF
CategoryEngine
LanguageEnglish

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