FRP products are used in petroleum, chemical and drainage industries. In recent years, the production of FRP products in my country has developed rapidly, the number has increased year by year, and the scope of application and sectors have become wider and wider.
The long-term solidification of oil sludge and rust in the pipe causes the diameter of the original pipe to become smaller, which cannot meet the smooth passage of the large discharge flow. The sludge and sediment at the bottom of the pipe always raise the downstream of the drainage pipe, causing the slope of the pipe to decrease, making the flow rate smooth and unsteady. Before that, the blockage of the pipeline will increase exponentially, and the sewage discharge function will be interrupted at any time.
The long-term sludge precipitation in the pipe produces hydrogen sulfide gas, which causes environmental pollution and is easy to cause explosion.
The acid and alkali substances in the wastewater are easy to corrode the pipe wall. The foreign matter in the pipeline is not cleaned regularly, causing the pipeline to be blocked and the sewage to overflow.
The sediment accumulated in the pipes becomes a breeding ground for harmful bacteria, flies, mosquitoes, mice, and cockroaches, and spreads to the room through the pipes.
The long-distance oil and gas pipeline has the characteristics of large diameter, long transportation distance, high pressure and large transportation volume. It includes pipelines, stations, communication systems, anti-corrosion facilities and other auxiliary systems. It is a huge and complex project. Leakage and destruction of pipelines due to various reasons may cause fire and explosion accidents. When the pipeline passes through densely populated areas or is close to important facilities, the fire will cause huge losses of life and property; in remote desert mountainous areas, it is often difficult to extinguish the fire. A large amount of oil products are concentrated in the tank area of the station and oil depot, and a large oil tank fire is also a serious accident that is difficult to fight. These accidents in the oil and gas storage and transportation system will also pollute the environment and have a long-term negative impact on public health and environmental protection. Under the background that the society pays more and more attention to public safety and environmental protection, the safety of oil and gas storage and transportation system has received extensive attention.
FRP products can resist the erosion of acid, alkali, salt, seawater, untreated sewage, corrosive soil or groundwater and many chemical fluids. It has a longer service life than traditional pipes, and its designed service life is generally more than 50 years. For FRP pipelines with sand inclusions, they are more widely used in municipal and urban transmission and distribution pipelines, because they are non-toxic, rust-free, tasteless, have no secondary pollution to water quality, do not require anti-corrosion, and have greatly extended service life. It has the advantages of easy installation and other advantages, so it is welcomed by the water supply and drainage industry.