The maintenance of LSAW Steel Pipes (straight seam submerged arc welded steel pipes) mainly involves two aspects: cleaning and maintenance. The following are specific maintenance suggestions:

1. Cleaning

Clear water cleaning:

Advantages: Simple and easy to implement, no damage to steel pipes.

Disadvantage: The removal effect of impurities such as calcium and magnesium ion scale and biofouling attached to the inner wall of steel pipes is limited.

Physical cleaning:

Working principle: Using compressed air as the power source, a specially designed bullet larger than the inner diameter of the pipeline is launched into the steel pipe by a generator, causing it to move at high speed and friction along the inner wall of the pipeline, achieving the effect of cleaning the inner wall of the pipeline.

Advantages: The cleaning effect is obvious, and there is basically no damage to the steel pipe, making it a relatively thorough cleaning method so far.

Disadvantage: Requires professional equipment and operational skills.

Liquid cleaning:

Method: Add chemical reagents to water for cleaning.

Disadvantage: Chemical agents may cause corrosion to steel pipes, shorten their service life, and are not recommended for use.

2. Maintenance

Regular inspection:

Regularly inspect the appearance and internal quality of LSAW steel pipes, including welds, wall thickness, surface coating, etc., to ensure that they are in good condition.

Anti corrosion treatment:

According to the usage environment, choose the appropriate anti-corrosion coating or method, such as hot-dip galvanizing, sandblasting and rust removal followed by anti-corrosion paint, etc., to extend the service life of steel pipes.

Avoid harsh environments:

Try to avoid exposing LSAW steel pipes to harsh environments such as high temperature, humidity, and strong corrosiveness to minimize their damage.

Correct installation and use:

During installation and use, relevant regulations and requirements should be followed to ensure the safety and reliability of steel pipes.

In summary, the maintenance of LSAW steel pipes mainly includes two aspects: cleaning and maintenance. By using reasonable cleaning methods and effective maintenance measures, the service life of LSAW steel pipes can be extended, ensuring their normal operation and safety.

Regarding the maintenance of LSAW steel pipes, in addition to the cleaning and maintenance measures mentioned earlier, there are several points that need to be noted:

1. Storage environment

Dry and ventilated: LSAW steel pipes should be stored in a dry and ventilated environment, avoiding prolonged exposure to moisture or rain to prevent rusting or corrosion of the pipes.

Avoid direct sunlight: Prolonged exposure to sunlight may cause the surface temperature of the steel pipe to rise, resulting in small cracks or deformations. Therefore, it should be stored in a cool and shady place.

2. Transportation and installation

Smooth transportation: During transportation, LSAW steel pipes should be placed smoothly to avoid severe impact or vibration, in order to prevent deformation or damage of the steel pipes.

Correct installation: During installation, relevant specifications and requirements should be followed to ensure good sealing at the interface of the steel pipe and prevent leakage. At the same time, attention should be paid to maintaining the normal state of the steel pipe and avoiding bending or twisting.

3. Regular maintenance

Surface cleaning: Regularly clean the surface of LSAW steel pipes to remove dirt and impurities, in order to maintain their neat appearance and extend their service life.

Coating inspection and repair: If the coating on the surface of the steel pipe is damaged or peeled off, it should be inspected and repaired in a timely manner to prevent further corrosion of the steel pipe.

Weld seam inspection: Regularly inspect the weld seam to ensure that there are no defects such as cracks or slag inclusions, in order to ensure the strength and safety of the steel pipe.

4. Precautions

Avoid collision: During the transportation, installation, and use of steel pipes, attention should be paid to avoiding collisions with heavy objects to prevent deformation or surface damage of the steel pipes.

Fire safety: As steel pipes are flammable materials, they should be stored and used away from sources of fire to ensure fire safety.

In summary, the maintenance of LSAW steel pipes involves multiple aspects, including storage environment, transportation and installation, regular maintenance, and precautions. Through reasonable maintenance measures, the normal use and extended service life of LSAW steel pipes can be ensured.