The role of steel pipes - Cleaning and maintenance of steel pipes Introduction and function of steel pipes The development of steel pipe production technology began with the rise of bicycle manufacturing industry and the development of oil in the early 19th century, the manufacturing of thermal power boilers after World War II, the development of chemical industry, and the drilling, production and transportation of oil and natural gas, etc., which have effectively promoted the development of the steel pipe industry in terms of variety, output and quality.

Steel pipe is not only used to transport fluids and powdery solids, exchange heat energy, and manufacture mechanical parts and containers, it is also an economical steel. The use of steel pipes to manufacture building structure mesh frames, pillars and mechanical brackets can reduce weight, save 20-40% of metal, and can realize factory mechanized construction. , the use of steel pipes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of ​​coating protective layers and save investment and maintenance costs.

Selecting techniques for purchasing steel pipes

1. The color selection is basically uniform, the inner and outer walls are smooth and flat, and there are no bubbles, depressions, impurities, etc. that affect the surface performance defects.

2. It depends on whether the product is fully marked. The steel pipe should have the factory name or trademark, production date, product name, specifications and sizes, execution standard number, etc. The steel pipe should have the product name, nominal outer diameter, pipe series S, etc., the handwriting should be clear, and check whether the mark is consistent with the actual situation.

3. You should buy pipes and fittings of the same brand. Because the raw materials of different brands of products may be different, it will cause adverse factors to the welding of pipe fittings, and will cause leakage at the welding joint during long-term use.

4. Good steel pipes have high strength but are not broken, so the quality of steel pipes cannot be judged by whether they can be broken. Since the impact resistance of steel pipes is better than that of real steel pipes, steel pipes are more likely to be smashed, and steel pipes are often the ones that cannot be smashed. Cleaning and maintenance of steel pipes

1. Cleaning of clean water

Cleaning of clean water

rinsing of the inner wall of the steel pipe with clean water, but the impurities such as calcium, magnesium ion scale, biological sludge, etc. that adhere to the inner wall of the steel pipe cannot be completely removed, and the effect is not obvious.

2. Physical cleaning

Now on the market, the working principle of this cleaning is basically to use compressed air as power, and use the transmitter to launch a special projectile larger than the inner diameter of the pipeline into the steel pipe, so that it moves at high speed along the inner wall of the pipeline and rubs fully to achieve the effect of cleaning the inner wall of the pipeline. This method has obvious cleaning effect and is basically harmless to the pipeline. It is the most thorough cleaning method so far.

3. Potion cleaning

Potion cleaning is to add chemical reagents to water, but the chemical composition is corrosive to steel pipes and also shortens the life of steel pipes. It is a method of fishing in a dry pond and is not advisable.