The reasons for the anti-corrosion of the spiral steel pipe

Due to the corrosion of steel pipes and equipment, the quality of products has been reduced due to the shutdown of production enterprises. Affect the domestic gas supply, heating steam or hot water, and bring many difficulties to people's lives. Leakage of buried oil, gas, water, and other pipelines and pipelines, and leakage of pipelines and equipment such as oil refining, chemical, chemical fiber, fertilizer, and pharmaceuticals. In addition to the loss of a large number of useful substances, it also causes serious environmental pollution, and even causes catastrophic accidents such as fire, explosion, and collapse. Given the prevalence of metal corrosion. To prevent or slow down the occurrence of metal corrosion. Various metal anti-corrosion technologies and processes have emerged. Promotion and application of new metal anti-corrosion processes, new materials, and new equipment. Extend the service life of pipeline equipment, save money and ensure safe production. China's petrochemical, public utilities, and other industries. The pipeline is perforated due to corrosion up to 20,000 times per year. It mainly occurs at the interface of the steel pipe and the collision of the pipe itself.

The corrosion problem of spiral steel pipe generally exists in various sectors of the national economy and construction, which not only brings huge losses to the national economy. It also caused great difficulties in production and life. Steel pipes are corroded all the time under natural conditions (atmosphere, natural water, soil) or man-made conditions (acid, alkali, salt, and other media). A self-inflicted wasteful consumption. The root cause of steel pipes is that they are in a thermodynamically unstable state, under which they will return to their original relatively stable state. Generate iron oxide carbonate and so on. or converted them into soluble ions. This process is the corrosion process of metals. According to statistics, the annual output of steel in China is 160 million tons. More than 60 million tons are lost annually due to corrosion. It is almost equal to the annual output of the Shanghai Baosteel Steel Plant. Corrosion is not only a waste of iron and steel resources but also shortens the service life of pipelines and equipment due to corrosion. The cost of replacing new pipeline equipment far exceeds the price of the metal material itself, which increases the production cost and reduces the economic benefits of direct corrosion caused by corrosion. And indirect economic losses are huge. Corrosion products from a scale layer, affect heat transfer and medium flow rate, reduce heat transfer efficiency, and greatly increases energy consumption. The economic loss caused by corrosion in my country is as high as 280 billion yuan every year, which is more than the sum of natural disasters such as wind disasters, floods, earthquakes, and fires every year. Also anti-corrosion spiral steel pipe!

It can be seen that the anti-corrosion treatment of the spiral steel pipe is an important step. It is recommended that in projects involving some special environments if conditions permit, the spiral steel pipe must be treated with anti-corrosion.