中冷器差压
The pressure or temperature difference measured across the intercooler, used to detect fouling or blockages affecting engine performance.
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Engineering
Browse Engineering terms for maritime professionals.
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主机反转
A maneuver in which the main engine’s rotation direction is reversed, allowing the ship to go astern or stop.
View term主机指示器
An instrument that displays key operational parameters of the main engine, such as load, RPM, and cylinder pressures, aiding performance monitoring.
View term主机控制
The central console or system used to monitor and operate the ship’s main propulsion engine, including remote start, stop, RPM, alarms, and critical parameter displays, typically located in the engine control room or bridge.
View term主气瓶
A large pressure vessel that stores compressed air for main engine starting and other critical pneumatic systems, maintained as per SOLAS and class standards.
View term主轴承润滑油
Lubricating oil supplied to the main engine's main bearings, essential for reducing friction and preventing overheating or seizure.
View term主配电板
The primary electrical distribution panel on board controlling power supply to all vital systems and equipment, designed and operated per class and SOLAS rules.
View term低负荷运行
Operating main engines or generators at reduced output, often during harbor stay or maneuvering, requiring special monitoring to prevent issues like incomplete combustion.
View term关键机械清单
An official document or database on board identifying all essential machinery whose failure would significantly affect vessel safety, navigation, or pollution prevention, maintained as per ISM and class rules.
View term冷却水系统
The network of pipes, pumps, and heat exchangers circulating water to remove excess heat from the main engine and auxiliary systems.
View term净化器流量测试
An operational procedure to verify the flow rate and performance efficiency of the lubricating or fuel oil centrifugal purifier under specified conditions, as per manufacturer and class requirements.
View term净油机污泥舱
A tank designed to collect and store sludge and contaminants removed by fuel or lube oil purifiers before final disposal.
View term减速箱油
Lubricating oil specifically formulated for use in reduction gearboxes, ensuring smooth power transmission and preventing gear wear or overheating.
View term动力输出装置
A mechanical device that transfers engine power to auxiliary equipment such as generators or pumps, typically via a shaft coupling.
View term压力调节阀
A valve used to maintain a set pressure in a piping system by opening or closing in response to changes in upstream or downstream pressure.
View term压载泵自动模式
An automatic mode setting on the ballast pump, enabling the pump to start and stop based on tank level sensors or a central control system.
View term双底舱
A compartment at the bottom of the ship, between the inner and outer hull, used for ballast water, fuel, or as a safety measure against grounding.
View term发动机互锁系统
An automated safety mechanism that prevents certain engine operations unless predefined conditions are satisfied, protecting equipment and personnel from unsafe procedures.
View term发动机安全停机
An automatic or manual action that stops the engine to prevent damage or hazard when critical parameters exceed safe limits, as mandated by SOLAS and machinery safety systems.
View term发动机数据记录仪
A device or software system that automatically records and stores key engine parameters for performance monitoring, diagnostics, and compliance documentation.
View term发动机负载分配
The process of distributing electrical or mechanical load evenly between two or more engines or generators operating in parallel to optimize performance and prevent overloading, as per engine room procedures and automation systems.
View term发动机转速设定
The selected rotational speed at which a ship’s engine is set to operate, typically determined by bridge orders for maneuvering or voyage.
View term发动机遥测面板
A central control panel for monitoring, displaying, and logging engine performance parameters and alarms in real-time, often located in the engine control room.
View term发电机并网
The process of matching the voltage, frequency, and phase of an incoming generator to the busbar before connecting it in parallel with the existing power supply.
View term发电机负载测试
A controlled procedure for verifying a generator’s capability to supply rated power by gradually applying electrical loads while monitoring performance parameters.
View term可控螺距螺旋桨
A propeller with blades whose pitch can be adjusted while running, allowing for variable thrust and improved maneuverability without changing engine speed.
View term吹灰器操作
The process of using a soot blower system to remove accumulated soot from boiler tubes or exhaust gas economizers, ensuring efficient heat transfer and preventing fire hazards.
View term增压器维护
Scheduled inspection, cleaning, and servicing of the engine turbocharger to ensure optimal performance and prevent breakdown, as per manufacturer’s recommendations and class rules.
View term备用润滑泵
A backup pump in the engine room that automatically or manually provides lubrication oil flow if the main pump fails, ensuring critical machinery protection.
View term套筒冷却水
The fresh water circulating through the engine’s cylinder jacket to absorb heat and prevent overheating during operation.
View term导热油加热器
A unit designed to heat thermal oil used as a medium for transferring heat to fuel tanks, cargo systems, or other shipboard processes.
View term尾轴管密封
A sealing device at the exit point of the ship’s propeller shaft through the hull, preventing water ingress and oil leakage, and critical for propulsion integrity.
View term应急发电机启动
The procedure to initiate the ship's emergency generator to supply critical electrical power during a main blackout or failure of the main power supply, as required by SOLAS and vessel emergency protocols.
View term应急发电机控制板
The control interface for the ship's emergency generator, enabling monitoring, activation, and shutdown of emergency electrical power during critical situations.
View term应急燃油切断
A safety device or procedure for rapidly stopping fuel supply to machinery or tanks in case of fire or other emergencies.
View term应急舱底吸水
A designated suction line and valve in the engine room bilge system used only in emergencies to rapidly remove water from flooded compartments, as required by SOLAS regulations.
View term废气锅炉
A heat recovery unit using main engine exhaust gases to generate steam for shipboard heating or auxiliary systems, integral to energy management under MARPOL and SOLAS.
View term惰性气体发生器
A shipboard unit that produces inert gas, primarily used on tankers to maintain a non-flammable atmosphere in cargo tanks, reducing the risk of explosion.
View term扫气空气冷却器
A heat exchanger that cools scavenge air supplied to main engine cylinders, increasing air density and engine efficiency as per engine manufacturer and class requirements.
View term排气温度传感器
A device that measures and transmits the temperature of exhaust gases, crucial for monitoring engine performance and preventing overheating or thermal damage.
View term推进控制面板
The main interface on the bridge or in the engine room for controlling the vessel’s propulsion system, including speed, direction, and emergency stop.
View term操纵杆位置
The selected position of the manoeuvring lever on the bridge or engine control console, determining direction and speed of the main engine during vessel maneuvers.
View term断电恢复程序
A prescribed procedure to restore shipboard power and restart essential systems after total electrical blackout, ensuring safe and rapid recovery of propulsion and control.
View term曲轴箱爆炸泄压装置
A safety device fitted on engine crankcases that vents pressure and flame in the event of a crankcase explosion, reducing risk of damage and crew injury.
View term本地控制台
A designated engine room console enabling manual operation and monitoring of main engine or machinery independently of the remote (bridge) controls.
View term机舱值班
The assigned period when crew are stationed in the engine room to monitor, operate, and respond to machinery and alarms, in accordance with SOLAS and engine room management procedures.
View term机舱报警
An audible and/or visual signal in the engine room, indicating an abnormal or hazardous condition in machinery, systems, or parameters that requires prompt crew attention according to the ship’s alarm management procedures.
View term机舱进水
The presence or rapid ingress of water in the engine room spaces, posing a serious risk to machinery and vessel safety, requiring emergency response and reporting under SOLAS protocols.
View term机舱通风
The provision and regulation of air flow to the engine room to remove heat, fumes, and ensure safe working conditions, as per SOLAS and class rules.
View term机舱隔离
The process or system of segregating the engine room from other compartments to contain hazards such as fire, flooding, or toxic gas.
View term柴油油舱
A dedicated tank for storing diesel oil, used for main engines, auxiliary engines, or emergency generators on board ship.
View term止回阀测试
A procedural check to verify that a non-return (check) valve allows fluid flow in only one direction, preventing backflow in piping systems.
View term气体检测面板
A monitoring system that displays real-time readings from gas detectors, providing alarms if hazardous or flammable gas is detected in any compartment.
View term气缸切断
A control action or device used to disable fuel supply to a cylinder, usually for maintenance or troubleshooting, while engine is running.
View term气缸润滑油供给
The controlled supply of lubricating oil to the main engine cylinder liners, essential for reducing friction and wear, as specified by engine manufacturer and class.
View term油排放监测器
An electronic device used to measure and control oil content in discharged water, ensuring compliance with MARPOL and pollution prevention standards.
View term油雾探测器
A fixed device that continuously monitors and detects oil mist concentrations in engine crankcases to prevent explosions and ensure safe engine operation.
View term泵联轴器防护罩
A mechanical safety cover installed over rotating pump couplings to prevent injury and contain parts in the event of failure.
View term泵舱通风
The process and system for providing safe airflow in the pump room to prevent accumulation of explosive vapors and maintain a safe working environment.
View term海底阀
A seacock or valve fitted at the hull sea chest, controlling seawater intake for engine cooling, ballast, or firefighting.
View term海水冷却泵
A pump supplying seawater to coolers for cooling main and auxiliary machinery, essential for temperature regulation and engine safety.
View term润滑油净化器
A centrifugal device used on board to remove water and contaminants from lubricating oil, ensuring optimal engine operation and longevity.
View term液压油冷却器
A heat exchanger used to maintain the temperature of hydraulic oil within safe operating limits for reliable system performance.
View term淡水发生器
A shipboard device that produces potable freshwater from seawater using evaporation and condensation, essential for crew and machinery needs, and subject to MARPOL and class guidelines.
View term燃油切换程序
A documented process for safely switching the ship’s fuel supply from one grade or type to another, often to comply with sulphur regulations in emission control areas.
View term燃油均质机
A machine that breaks down asphaltene clusters and ensures uniform mixing of fuel oil, improving combustion quality and reducing sludge formation.
View term燃油滤清器旁通
A mechanism allowing fuel to flow around a clogged filter element to maintain engine operation in emergencies, potentially introducing unfiltered fuel.
View term燃油粘度
The measure of a fuel oil’s resistance to flow, critical for engine injection and atomization; monitored and regulated in shipboard fuel systems.
View term燃油转移
The process of pumping fuel oil from one tank to another or to the engine, requiring strict adherence to MARPOL, safety, and spill prevention procedures.
View term燃油齿条位置
The precise setting of the fuel control rack that determines the amount of fuel delivered to each cylinder of a diesel engine.
View term电动机过载
A condition in which an electric motor draws current above its rated limit, risking overheating and possible failure unless protected by automatic tripping devices.
View term稳压水罐
A pressurized tank in a ship’s fresh water system that maintains constant water pressure for domestic and service use throughout the vessel.
View term紧急停机开关
A manually operated control that immediately halts machinery or electrical equipment in emergencies to prevent damage, fire, or injury.
View term自动反冲洗
A system that automatically reverses flow through filters or strainers to remove debris and maintain performance without manual intervention.
View term自动电力管理
A computerized system on board ships that monitors and optimizes power generation and distribution automatically, ensuring efficiency and compliance with class requirements.
View term自动锅炉加药
A system that automatically injects water treatment chemicals into the boiler feedwater to control scale and corrosion, ensuring efficient and safe operation.
View term舱底水报警
An alert indicating the presence of excess water in the bilge spaces, often requiring automatic or manual pumping, and indicating possible leak or flooding, as per MARPOL and class regulations.
View term舱柜测深系统
An electronic or manual system for measuring liquid levels in ship tanks, such as fuel, ballast, or fresh water, to ensure safe operations and compliance with MARPOL and class.
View term舵机报警
A warning signal indicating malfunction or abnormal condition in the steering gear system, requiring immediate crew investigation to ensure safe navigation and comply with SOLAS Chapter II-1.
View term蒸汽排放阀
A valve that releases excess steam from boilers or turbines to prevent overpressure, often routed to the atmosphere or condenser in emergencies.
View term调速器响应测试
A routine operational test to verify that the engine speed governor responds correctly to load changes, ensuring engine safety and performance.
View term负荷卸载系统
An automated system that disconnects non-essential electrical loads to prevent total blackout when generator capacity is insufficient.
View term负载依赖启动
An automatic function of the ship’s power management system that starts or stops auxiliary engines or generators based on electrical load demand, per SOLAS and class requirements.
View term起动空气分配器
A mechanical device that controls the timing and sequence of starting air supplied to engine cylinders during main engine start-up, in compliance with class and manufacturer requirements.
View term起动空气压缩机
A compressor that supplies high-pressure air for starting main and auxiliary engines, essential for engine readiness and maneuvering operations.
View term起动空气过滤器
A filter installed in the starting air system to remove contaminants from compressed air before it reaches engine cylinders for starting.
View term轴功率限制
A set operational restriction on the maximum shaft power output, typically to comply with EEXI and MARPOL Annex VI energy efficiency regulations.
View term轴承温度
The measured temperature of a ship’s main propulsion shaft bearing, monitored continuously to prevent overheating and possible bearing failure.
View term轴转数计
A device or system that records the number of revolutions of the propulsion shaft, providing critical speed and distance data.
View term辅助锅炉停机
The complete stopping of an auxiliary boiler on board, including secure isolation and safety checks, typically during port stay or upon order.
View term辅机启动
The operation to start a ship’s auxiliary engine, which provides electrical power or essential services independently of the main propulsion engine, typically performed before arrival, departure, or critical shipboard operations.
View term远程备用泵
A pump located outside the machinery space, operated remotely to provide emergency or backup fluid transfer capability.
View term远程控制系统
A system allowing the operation and monitoring of shipboard machinery or equipment from a location other than the equipment itself, such as from the bridge or engine control room, compliant with SOLAS and class requirements.
View term锅炉低水位
A hazardous boiler condition where water level falls below the minimum safe mark, risking tube overheating, boiler damage, or explosion.
View term锅炉燃烧器管理
The control and monitoring of burner operations on marine boilers to ensure safe and efficient ignition, combustion, and shut-down sequences.
View term除气罐液位
The measured height of water within the deaerator tank, critical for ensuring proper removal of dissolved gases from boiler feedwater.
View term驾驶台控制模式
A mode in which the propulsion and critical machinery are operated directly from the bridge, with command transferred from the engine control room for maneuvering or restricted navigation.
View term驾驶台机舱车钟
A signaling system between bridge and engine room, used to transmit engine speed and direction orders during ship maneuvering.
View term高压燃油
Fuel oil pressurized to high levels for injection into main engine cylinders, delivered by high-pressure pumps as specified by engine manufacturer and SOLAS for efficient combustion.
View term