2024年9月1日 · Sea chests are crucial for a ship's machinery operations, enabling the intake of seawater for cooling systems and ballast tanks. A sea chest is a recess in the ship's hull, usually found in the engine room (but always under the waterline). It is protected by gratings to keep out debris and marine life.

The sea chest provides an intake reservoir from which piping systems draw raw water. Most sea chests are protected by removable gratings, and contain baffle plates to dampen the effects of vessel speed or sea state. The intake size of sea chests varies from less than 10 cm 2 to several square metres. [1]

海底门是船壳板开孔中唯一用来吸入外界海水或淡水的（在内河），其他舷侧开孔基本上为排放。 海底门有这样几个作用： 从海底门吸入的海水用来冷却低温淡水，在良好的航行途中，高低位海底门都可吸入干净的海水，低位海底门的水温相对更低，有利于冷却系统的节能。 当船舶航行在浅水域，使用高位海底门，能吸入比较纯净的海水，以避免泥沙等杂质进入系统，堵塞滤器，大型船舶可能会设计多个高位海底门。 在恶劣海况下，大风浪会在成船舶持续横倾，高位海底门更容 …

The sea chest is an essential component of the hull of a ship, essentially an enclosed chamber, which takes in seawater for various operations such as cooling, ballast, or firefighting. Sea chests are provided with strainers to filter the debris before the water enters the ship’s systems.

2024年1月8日 · In ships, sea chests are nothing but a suction point/port. The first stop of seawater before it is included in the ship’s body is sea chests. Think of it as a vast reservoir, one side open to the sea, and on the other side, a pipeline opens to the ship.

2022年5月25日 · The sea water intake is possible through a crossover main pipe connected to the high and low sea chests located on each side of the ship. Each sea suction chest has an associated suction filter and this must be maintained in a clean condition, in order to ensure adequate water flow to

Sea chests are the intake areas for ballast water in the hulls of large ships. Sea chests have been demonstrated to house and transport a wide variety of organisms. Grates or screens over the sea chest may prevent large organisms from being entrained in the ballast water of ships, however, even larger species such as adult crabs and fish have ...

Sea chests 3.1 Taking into account the need for the design of sea chests to minimize skin friction of the ship's hull, generating laminar flow of water over the hull form and facilitating good flow of water into the ship's seawater suction pipes:

.1 sea chests – minimize size and number, and use smooth surfaces to maximize flow efficiency, fit MGPS, and steam or hot water cleaning systems, grills and their opening arrangements designed for in-water inspection and maintenance;

.1 sea chest design should be such that sediment accumulation is minimized; and .2 provision of a high sea chest. Parent topic: 4 Design Considerations to Enhance Management, Control and Operational Strategies