Marine Flammable Gas Detection System
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The Marine Flammable Gas Detection System is used for continuous monitoring of flammable gas (LEL) concentrations in critical areas such as the engine room, fuel gas supply system (FGSS), fuel treatment room, valve/manifold station, compressor room, storage tank area, and ventilation ducts. When the gas concentration reaches a preset threshold, the system provides audible and visual alarms, interlock control, event logging, and remote data uploading, ensuring reliable protection for vessel gas safety and explosion-proof risk management. It meets class society requirements and fuel application configurations (LNG, methanol, hydrogen, ammonia, and multi-fuel) for gas monitoring.
Core Values:
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Early Warning, Reduced Explosion Risk: Rapid detection at the initial stage of leakage to prevent gas concentrations from entering the explosive range.
Interlock Protection, Accident Containment: Supports safety logic integration with ESD, ventilation, valves, fuel shut-off, and other systems.
Compliance & Audit-Friendly: Automatically records key events such as alarms, faults, bypass, and calibration for easy class inspection and management.
Vessel-Wide Visualization: Local display in the engine room + integration with IAS/AMS/platforms for centralized monitoring and report generation.
System Features:
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Multi-Point Zoned Monitoring: Supports multi-channel expansion with grouped display and alarm management by zone.
Two-Stage Alarm Strategy: Configurable pre-alarm (e.g., 20% LEL) and high alarm (e.g., 40% LEL).
Fault Self-Diagnostics: Monitors and alarms for sensor failure, disconnection, out-of-range, drift, power supply anomalies, etc.
Marine Environment Adaptation: Vibration-resistant, salt-spray-resistant, and humidity-resistant, suitable for engine rooms and other complex operating conditions.
Multiple Detection Technologies Available: Catalytic combustion / infrared (IR), selectable based on gas type and explosion-proof requirements.
Communication & Integration: Supports integration with ship IAS/AMS, ESD systems, and gateway platforms (e.g., Modbus, 4-20mA, relay output, Ethernet, depending on configuration).
Easy Maintenance: Supports zero/span calibration, calibration gas verification, calibration reminders, and maintenance logging (depending on configuration).
Typical Application Scenarios
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LNG Fuel Vessel / Dual-Fuel Vessel: FGSS room, valve station, gas pressure regulating/boosting unit, ventilation ducts, manifold area.
Methanol Fuel Vessel: Fuel treatment room, supply unit, pump/valve area, ventilation ducts, and tank spaces.
Hydrogen/Ammonia & Alternative Fuel Systems: Fuel treatment and supply modules, enclosed spaces, ventilation and exhaust areas (optional integration with toxic gas detection).
Engine Room & Pump Room: Fuel oil/solvent volatilization risk points, enclosed spaces, local ventilation dead zones.
Chemical Carrier / Special Purpose Vessel: Flammable gas monitoring and alarm interlock for cargo handling-related areas.
System Composition:
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Flammable Gas Detector (LEL): Fixed point-type detector (explosion-proof / non-explosion-proof configured by zone)Control Host / Control Panel: Multi-channel acquisition, alarm processing, interlock output, event loggingAudible & Visual Alarm and Indication Unit: Local audible/visual alarm, centralized display in control room (optional)Relay / Analog / Communication Interface Modules: Interfacing with ESD, ventilation, valves, BMS, and other systemsPower Supply & Redundancy (Optional): Dual power supply / UPS / redundant control architecture (depending on class and project requirements)
Main Functions:
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Real-Time Concentration Display: %LEL, trend curves, and point status overview
Alarm Management: Two-stage alarm, silence/reset, bypass/inhibit management, alarm acknowledgment
Interlock Control: Ventilation start, fuel shut-off, valve closure, ESD activation, etc. (project-specific logic)
Data Logging: Alarm/fault/operation logs, calibration records, historical data query and export
System Health Monitoring: Self-diagnostics, fault location, maintenance reminders, and spare parts management recommendations (depending on configuration)
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Sales Email: sales@secorp.cn
Service Email: cs@secorp.cn
Company Tel: +86-25-57700077
Sales Hotline: +86-25-85549445
Company Address: No. 398 Wangxin Road, Smart Manufacturing Industrial Park, Jiangbei New Area, Nanjing
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