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Application of titanium in marine engineering

Materials for marine engineering require high performance, high function, safety, reliability, practicability, and low cost in addition to being resistant to marine corrosive environments. The following are descriptions from the aspects of ships, seawater desalination, marine facilities, and marine exploration.
In the field of marine applications, the harsh working environment requires materials with excellent performance. Ships and some equipment components such as hulls, heat exchangers, pumps, valves, pipelines, etc. are immersed in seawater for a long time and are extremely susceptible to seawater corrosion. Titanium material can solve the problems of submarine pipeline leakage caused by corrosion/erosion and ship failure caused by marine organisms. It not only has excellent seawater corrosion resistance, but also can reduce the weight of ships, reduce maintenance costs and prolong service life. Titanium is widely used in everything from ferries, fishing boats, naval warships to deep-sea submarines. Its main application areas include plate/frame and shell, tubular heat exchangers, water supply systems, steam condensers, surface condenser piping systems, cooling water systems, oil pollution treatment systems, deck drainage systems, cabin bottoms, navigation systems, railings , ship propulsion system, pressure vessel of deep-sea submarine, main structural parts of warship, pressure-resistant parts of ships, etc.
In terms of seawater desalination, the amount of titanium used in seawater desalination plants in the United States, Japan and China has also increased significantly in recent years. A Japanese company built a 3,200-ton titanium tube for a seawater desalination unit in Saudi Arabia. About 250 tons of titanium are used in desalination projects in Tianjin and Shandong, China.
Titanium used in marine facilities has also increased. Large floating marine structures that have implemented or planned to use titanium include airports, port logistics bases, crude oil and natural gas storage bases, bridges, sports and entertainment facilities, etc.
In terms of marine exploration, offshore oil production equipment such as oil production platforms, crude oil coolers, oil risers, pumps, valves, joints, fixtures, etc. are in contact with sulfide, ammonia, chlorine and other media in seawater and crude oil. Equipment made of titanium or Parts have been widely used in marine exploration.
In addition, the comprehensive utilization of seawater is one of the important projects in marine engineering. The condenser of the coastal power station is a device that uses a large amount of seawater. After using titanium materials, the service life of the condenser is prolonged, the heat exchange efficiency is improved, and the safety is improved. China has used a large number of titanium materials instead of other materials to manufacture the condensers of coastal power plants. So far, about 100 units of more than 30 power plants have adopted all-titanium condensers and titanium tube condensers.
Looking forward to the future, as an emerging civil market of titanium, marine engineering has developed rapidly in recent years. In the case of energy shortage, from offshore to deep sea, many countries in the world are developing and using the ocean, and the excellent performance of titanium can well meet the requirements of people's application in marine engineering, so the application field is very wide, and it is expected that the ocean Engineering titanium is expected to become a larger application market for titanium materials.

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