Construction technology of electric heating for natural gas pipelines

This article will introduce in detail the construction process of electric heating of natural gas pipelines, including pre-installation preparation, installation process, and post-installation inspection and maintenance, etc., aiming to help readers understand and master the implementation method of this process.

Preparation before installation

1. Understand the various indicators, structures and installation methods of electric heating cable products to ensure that the products meet the design requirements.

2. Confirm that all process pipelines (vessels) have been constructed and have passed the water pressure (air tightness) inspection. The surface of the pipeline has been rust-free, anti-corrosion, dry and smooth, without burrs or dirt.

3. Conduct a visual inspection of the installed electric heating tape products to see if the device is damaged, deformed, cracked or otherwise abnormal, and whether the mechanical temperature control of the cable is on and off normally.

4. Understand the installation diagram of the electric heating cable system, and confirm the product specifications, variety quantity and installation position.

5. Confirm whether the insulation material is dry, if it is wet, do not keep it warm, so as not to affect the heating and heat preservation effect of the electric heating cable.

6. Prepare the electric heating cable installation manual so as to record the installation content at any time.

Installation process

1. Use multiple parallel straight lines to wrap multiple electric heating tapes parallel to the outer wall of the pipe. It is generally suitable for long-distance, large-diameter pipes to ensure uniform heat dissipation.

2. During the installation process, be careful not to subject the electric heating tape to impact, pressure, or excessive bending to avoid damage.

3. During the installation process, keep your hands clean and do not touch the metal parts of the electric heating tape to avoid short circuits.

4. During the installation process, attention should be paid to ensuring that the electric heating tape and the pipe fit closely to avoid affecting the heat dissipation effect.

5. During the installation process, attention should be paid to ensuring that the wiring of the electric heating tape is correct and firm to avoid poor contact or short circuit.

Post-installation inspection and maintenance

1. Check whether the electric heating tape is installed completely, whether there is no damage to the appearance, and whether the wiring is correct.

2. Carry out a power-on test to check whether the electric heating tape is working properly and whether the heating is uniform.

3. During use, the heating condition of the electric heating tape should be checked regularly. If any abnormality is found, it should be dealt with in time.

4. During use, dust and dirt on the surface of the electric heating tape should be cleaned regularly to ensure the heat dissipation effect.

5. During use, care should be taken to avoid mechanical damage to the electric heating tape. If damage is found, it should be replaced in time.