The marine generator set is affected by multiple environmental climates, so the diesel generator set and the supporting radiator must meet the requirements of marine regulations before use, otherwise it will cause safety hazards and use problems.

此外，船用机组分主机和辅机，大多数情况要求多机并联，陆用机组视具体情况相对简单，两者使用条件也不一样，船用发电机组是在内陆河流或海洋上运行使用，因此防水、防潮、防盐碱、抗冲击、抗颠簸的能力有强制要求。

In addition, marine units are divided into main engines and auxiliary engines, and in most cases, multiple machines are required to be connected in parallel. Land units are relatively simple depending on the specific situation, and the usage conditions of the two are also different. Marine generator sets are operated and used on inland rivers or oceans, so there are mandatory requirements for waterproof, moisture-proof, salt alkali resistant, impact resistant, and bumpy resistance.

一般船用柴油发电机组及配套散热器在制造时会考虑以下四项环境因素：

The following four environmental factors will be considered in the manufacturing of general marine diesel generator sets and supporting radiators:

一、潮湿对发电机绕组绝缘及其他配件的损坏，特别是生锈问题，水箱箱体需防止锈蚀。

1、 Moisture can cause damage to the insulation and other accessories of the generator winding, especially rust. The water tank body should be protected from rust.

二、船体振动颠簸对机组整体性能尤其是散热器结构影响大。

2、 The vibration and turbulence of the ship have a significant impact on the overall performance of the unit, especially the radiator structure.

三、海洋环境中盐碱腐蚀（因海水是碱性）对机组绕组及散热器芯体腐蚀严重。

3、 Saline alkali corrosion in the marine environment (due to the alkalinity of seawater) severely corrodes the unit windings and radiator cores.

四、海上环境造成维修的不便。

4、 The marine environment causes inconvenience in maintenance.

陆用柴油发电机组及配套散热器并不会专门针对以上四个方面去设计，而船用机组则考虑到以上因素，必须选用三防水箱，否则机组一旦使用必然会造成早期腐蚀、穿孔，基本无法维修且更换困难，国家也明文规定船用机组及部件必须要有三检证书，检验合格的机组才允许在船上正常使用，处于类似环境的海岛用机组也适用以上要求。

The onshore diesel generator set and supporting radiator will not be designed specifically for the above four aspects, while the marine unit must use the three prevention water tank in consideration of the above factors, otherwise, once the unit is used, it will inevitably lead to early corrosion, perforation, basic inability to repair and difficulty in replacement. The state also explicitly stipulates that the marine unit and components must have the three inspection certificate, and the unit that passes the inspection can be used normally on board, The above requirements are also applicable to island units in similar environments.