Heat Conducting Pipe in Seawater Desalination Equipment

Heat Conducting Pipe in Seawater Desalination Equipment

Titanium is a material that is often used for heat conducting pipes in seawater desalination equipment, particularly in applications where corrosion resistance is a primary concern. Compared to copper or stainless steel, titanium is more resistant to corrosion and erosion in heat conducting pipe in seawater desalination environments. The heat pipe of the original seawater desalination equipment is mainly made of copper alloy tube, which has been replaced by titanium tube with high reliability and maintenance-free because of its many shortcomings.

Advantages

The heat conducting pipes made from titanium are typically used to transfer heat from a heat source, such as a boiler or a solar collector, to the seawater in the desalination process. As the seawater passes through the pipe, it absorbs the heat and the temperature of the water increases, making it easier to remove the salt and other impurities.

(1) Thickness of the wall of the titanium tube

The wall thickness of heat-conducting pipe is determined by using conditions, material of tube sheet, construction ability of expanding operation and welding technology of pipe end. Because the diameter of heat-conducting pipe is small and the strength requirement is not high, thin-walled pipe is adopted in practical use. Generally, copper-alloy pipe is 0.9mm-1.2mm in equal wall thickness; Titanium pipe is used instead of titanium pipe, and its corrosiveness is small. Where possible, thin-walled welded pipes with a wall thickness of 0.3 mm can be used.

(2) Thermal Conductivity of Titanium Tubes

Because of the different materials of heat pipe, the thermal conductivity is different, such as titanium 17W/(m·K), aluminium brass lOW/(m·K), 90/10 white copper 47W (m·K), 70/30 white copper 29W/(m·K), so the thermal conductivity of heat pipe can be controlled by the change of wall thickness. In the above materials, the thermal conductivity of titanium is the smallest. For example, the thermal conductivity of thin-walled titanium welded pipe is worse than that of aluminium brass, but it is equal to that of 90/10 white copper and better than that of 70/30 white copper.

(3) Economy of Titanium Tube

The unit mass price of titanium tube is 2-6 times higher than that of copper alloy, but considering the cost performance, the price of titanium tube can compete with that of copper alloy tube. Because of the low density of titanium and the same wall thickness, the quality of titanium tube with the same length is only 50% of that of copper alloy tube. When the wall thickness of titanium tube is 50% of that of copper alloy tube, the quality of titanium tube with the same heat transfer area is only 50%. According to the current price level, the overall price of thin-walled titanium welded pipe is the same as that of aluminium-copper pipe, which is cheaper than that of white copper pipe. It can be seen that titanium pipe is competitive in price.

Titanium Welded Tubes for Heat Conducting Pipe

We supply titanium welded tubes that meet the most stringent standards required for desalination processes. Titanium resists chloride ion attack and avoids salt build-up in pipes: any residue will be washed away by seawater. In addition to low maintenance costs, the combination of titanium's high mechanical properties, low weight density and corrosion resistance properties due to the very thin welded tube design makes titanium a very competitive choice in desalination heat exchangers. Titanium is widely used in several installations in the MENA region with excellent operating results.

Our titanium welded tubes satisfy many requirements:

· We can supply substantial volumes for any major desalination project thanks to our high manufacturing capacities and secured access to superior quality titanium strip.

· Our tubes can be manufactured in very thin wall gauges and large OD saving both on cost and weight

· We can supply very long tubes over 24 m

Benefits

One of the benefits of using titanium heat conducting pipes is that they are more resistant to the harsh conditions of seawater, which can include high salt content, fluctuating water temperatures, and exposure to marine organisms. However, titanium pipes can be more expensive than other materials, and may require special welding techniques and procedures.

Proper selection and maintenance of titanium heat conducting pipes can help ensure efficient and reliable operation of the desalination equipment. This may include regular inspection, cleaning, and repair of the pipes to prevent corrosion, erosion, or other types of damage. Overall, the use of titanium heat conducting pipes in seawater desalination equipment can help improve the efficiency and durability of the equipment, while reducing the risk of corrosion and other types of damage that can affect performance.

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