In the power and electrical supply systems of ships, marine generators play a crucial role. The operating environment of ships is complex and changeable, and the working conditions are harsh, which puts forward many special requirements for the water – cooled diesel generators equipped on them. As a well – known brand in the industry, SR POWER has been committed to the research, development, and production of water – cooled diesel generators that meet the special needs of ships.
Special Requirements of Ship Operating Environment for Marine Generators
1. Corrosion Resistance Requirements
Ships sail in the marine environment for a long time. Seawater is highly corrosive, and the air also contains a large amount of salt. This requires that the outer casing, internal components, and cooling systems of water – cooled diesel generators must have good corrosion resistance. Otherwise, the generator is extremely vulnerable to corrosion and damage, affecting its normal operation and service life. For example, ordinary steel materials will rust and corrode quickly in the seawater environment. If the key components of ship – used generators are made of such materials, failures may occur in a short time.
2. Impact and Vibration Resistance Performance
During the voyage, ships are affected by factors such as sea waves and wind – driven waves, generating continuous impacts and vibrations. Water – cooled diesel generators need to operate stably in such an unstable environment. Their internal components must have sufficient strength and a stable installation method to prevent components from loosening, being damaged, or connection parts from breaking due to impacts and vibrations. For example, if the key components of the generator, such as the rotor and stator, are not firmly fixed, they may be displaced in the vibrating environment of the ship, thereby affecting the power generation performance.
3. Adaptability to Different Tilt Angles
Ships may have various tilt angles during navigation, including transverse and longitudinal tilts. Water – cooled diesel generators need to be able to operate normally within a certain range of tilt angles. Their lubrication systems, cooling systems, and fuel supply systems must all be able to adapt to such tilt states. For example, traditional lubrication systems may not be able to ensure the normal supply of engine oil to each lubrication point when the ship is tilted, resulting in increased wear of engine components.
4. Waterproof and Moisture – proof Performance
The internal environment of ships is relatively humid, and water stains may splash onto the generator. In addition, under severe weather conditions, seawater may pour back into the engine room. Therefore, water – cooled diesel generators must have good waterproof and moisture – proof performance to prevent problems such as short – circuits and moisture – related damage to electrical components. For example, ordinary electrical insulation materials may reduce their insulation performance in a high – humidity environment, triggering safety accidents.
Special Requirements of Ship Working Characteristics for Marine Generators
1. Continuous Operation Stability
During the voyage, the power supply of ships cannot be interrupted, otherwise it will affect the safe navigation of the ship and the normal operation of various equipment. Water – cooled diesel generators need to be able to operate continuously and stably for a long time, and have a reliable cooling system and fuel supply system to ensure that the engine will not stop due to problems such as overheating or insufficient fuel during long – term operation. For example, during ocean – going voyages, ships may need to sail continuously for several weeks or even months, and the generator must continuously and stably supply power.
2. Power Regulation Flexibility
There are a wide variety of electrical equipment on ships, and the power demand varies greatly. When the ship is berthing, some high – power equipment such as loading and unloading equipment may stop operating, while during navigation, navigation equipment, communication equipment, and various living facilities all need power supply. This requires that water – cooled diesel generators can flexibly adjust the power output according to the actual power demand, not only to meet the instant high – power demand when high – power equipment starts, but also to operate efficiently under low – load conditions to avoid energy waste.
3. Starting Performance Requirements
When ships encounter emergencies, such as sudden power outages or the need to quickly change the navigation state, water – cooled diesel generators need to be able to start quickly and put into operation. This puts forward high requirements for their starting systems, including starting torque, starting speed, and starting reliability. For example, in cold sea areas, the low – temperature environment may affect the starting performance of the engine. At this time, the generator needs to be equipped with effective pre – heating devices and reliable starting methods.
Design of SR POWER Water – cooled Diesel Generators for Ship Special Requirements
1. Corrosion – resistant Design
- Selection of Outer Casing Material: SR POWER water – cooled diesel generators for ships use high – strength corrosion – resistant alloy materials to manufacture the outer casing. This alloy material has been specially treated and has good seawater corrosion – resistance. At the same time, an anti – corrosion coating is applied to the surface of the outer casing to further enhance its corrosion resistance.
- Protection of Internal Components: For the key internal components of the generator, such as the crankshaft, connecting rod, and cylinder liner, SR POWER adopts special anti – corrosion processes, such as nickel – plating and chrome – plating, to improve the surface hardness and corrosion resistance of the components. In addition, for the pipes and radiators of the cooling system, corrosion – resistant materials such as stainless steel or special plastic materials are also selected to ensure the long – term stable operation of the cooling system in the seawater environment.
2. Impact and Vibration Resistance Design
- Structural Optimization: SR POWER has optimized the overall structure of the generator, adopting a high – strength frame structure to enhance the overall rigidity of the generator. At the same time, by reasonably arranging the internal components, the center of gravity is more rationally distributed, reducing the unbalanced force generated by the ship’s vibration.
- Application of Shock – absorbing Devices: At the connection parts between the generator and the ship’s engine room, SR POWER installs high – performance shock absorbers. These shock absorbers can effectively absorb and isolate the vibrations and impacts of the ship, reducing the impact on the generator. In addition, in the installation of internal components, an elastic connection method is also adopted to further reduce vibration transmission.
3. Design for Adaptability to Tilt Angles
- Special Lubrication System Design: SR POWER marine generators for ships are equipped with a specially designed tilt – resistant lubrication system. This system adopts a high-position oil pan and a special oil pump structure to ensure the normal supply of engine oil to each lubrication point when the ship is tilted. Special additives are added to the engine oil to improve the adhesion and anti-wear performance of the oil.
- Cooling System Improvement: The cooling system has been optimized. Adopt a special coolant flow design and coolant storage device to ensure that the coolant can circulate normally when the ship is tilted, without problems such as coolant leakage or local overheating.
4. Waterproof and Moisture – proof Design
- Protection of Electrical Components: SR POWER has carried out strict waterproof and moisture – proof treatment on the electrical components of the generator. Electrical junction boxes and control cabinets with good sealing performance are adopted, and the internal electrical components have all been specially treated for moisture – proof, such as potting and coating with moisture – proof paint. At the same time, waterproof sealing measures are also adopted at the outlet ports of the generator to prevent water from entering.
- Ventilation System Design: A reasonable ventilation system has been designed, which can not only ensure good ventilation and heat dissipation inside the generator, but also prevent outside water vapor and dust from entering. High – efficiency air filters and waterproof covers are installed at the ventilation openings to effectively block water vapor and impurities while ensuring air circulation.
5. Continuous Operation Stability Design
- Efficient Cooling System: Marine diesel generators are equipped with an efficient water-cooled cooling system. It has a large heat – dissipation area and good heat – dissipation performance. By optimizing the structure of the radiator and the circulation method of the coolant, the heat generated by the engine can be quickly and effectively dissipated, ensuring that the engine always remains within the normal operating temperature range during long – term continuous operation.
- Reliable Fuel Supply System: A dual fuel-pump design and a large-capacity fuel tank are adopted to ensure the reliability of fuel supply. At the same time, high-efficiency fuel filters and oil-water separators are installed in the fuel system. Effectively filter impurities and water in the fuel, ensuring the cleanliness of the fuel and reducing the occurrence of engine failures.
6. Power Regulation Flexibility Design
- Intelligent Control System: SR POWER water – cooled diesel generators for ships are equipped with an advanced intelligent control system. This system can real – time monitor the power load of the ship and automatically adjust the power output of the generator according to the actual demand. By controlling the throttle opening and speed of the engine, the power of the generator can be accurately adjusted to ensure that the generator can operate efficiently and stably under various load conditions.
- Power Reserve Design: When designing the power of the generator, SR POWER takes into account the power demand of the ship in special situations, such as the instant high – power demand when high – power equipment starts. Usually, a certain power reserve is reserved, enabling the generator to provide power output exceeding the rated power in a short time to meet the special power needs of the ship.
7. Starting Performance Design
- Powerful Starting System: SR POWER water-cooled diesel generators for ships adopt a high – power starting motor and a high – performance battery, which can provide sufficient starting torque and starting current to ensure that the generator can start quickly under various environmental conditions. At the same time, an advanced starting control system is equipped, which can realize multiple starting methods such as automatic starting, manual starting, and remote starting.
- Pre-heating Device: For the use requirements in cold sea areas, SR POWER installs efficient pre-heating devices on the generator. These pre-heating devices can pre-heat the engine, reducing the starting resistance and improving the starting performance.
Due to their special operating environment and working characteristics, marine generators for ships put forward many special requirements for their performance and design. Through research on the needs of the ship industry, SR POWER successfully developed water – cooled diesel generators that meet the special needs of ships. These designs not only improve the reliability, stability, and durability of the generator. But also provide a strong guarantee for the safe navigation and efficient operation of ships.
With the continuous development of the ship industry and the continuous progress of technology, SR POWER will continue to be committed to innovation and improvement, providing ship users with more high – quality and efficient water – cooled diesel generator products and services.