Extensive application of titanium tubes in the marine industry

Titanium is better to seawater corrosion resistance than all other metals, and titanium has special stability in static or high speed flowing seawater. Therefore, titanium is an ideal material for seawater desalination plants. The number of titanium applications in this field will grow. Titanium has strong corrosion resistance to seawater and Marine air, and high strength and light weight. It is an ideal structural material for shipbuilding industry, and has been widely used in many parts of various ships and deep-water submarines.

At present, seawater desalination has spread to more than 60 countries and regions in the world, and there are more than 6 million seawater desalination plants in the world. The daily output of seawater desalination is about 35 million tons, and the annual rate is more than 10%. Desalination has become one of the best ways to solve the water shortage problem. At present, the world are three mainstream seawater desalination methods: multi-stage flash method (MSF), low temperature multi-effect distillation (LT-MED) and reverse osmosis membrane method (RO). The three methods each have their own advantages and disadvantages, and the applicable conditions and scope are also different. China mainly uses the LT-MED and RO two methods, and in the next few years, a number of seawater desalination projects will be launched in China. In the next 3-5 years, desalination in the future.

Depending on the current technology has a cost advantage for the large-scale application of seawater desalination, compared with the south-to-north water diversion project, the cost of water is lower. The state has issued a series of encouraging policies, and the scale of seawater desalination in the next 10 years will be five times that of now. It is the future trend to replace copper alloy with titanium alloy in seawater desalination equipment. The multi-directional advantages of titanium material determine the wide application space in the field of seawater desalination pipe in the future. It is expected that in the next ten years, the demand for seawater desalination titanium pipe in China will be about 9,500-23,520 tons, and about 140.63-281.25 0,000 tons worldwide. Although the preliminary domestic demand is not large, but the domestic demand only accounts for 1.6% of the total international demand, it can be said that the overall development space is very huge.