Electric heating is an ideal method of heating gas pipelines at metallurgical plants.
With the development of science and technology, electric heating can meet the requirements of production environments such as corrosion and explosion, and provide more funds for the gas pipeline network to prevent cold and heat preservation.
Oct 09,2022
With the large-scale technological transformation and strengthening of the fuel structure, the major metallurgical group in the north has gradually replaced natural gas, liquefied petroleum gas, heavy oil and other resources with gas. The metallurgical plant is located in the north, where winter temperatures are relatively low and gas often freezes and clogs during transportation. To ensure production and production, it is of particular importance to preserve the cold and heat of the gas pipeline network. For a long time, the metallurgical group usually used steam heat preservation and antifreeze. In recent years, with the development of science and technology, electric heating can meet the requirements of production environments such as corrosion and explosion, and provide more funds for the gas pipeline network to prevent the preservation of cold and heat.

As a new heating technology, electric heating technology has many advantages, such as:
Uniform heat dissipation along the length of the pipeline;
Small temperature gradient, long time thermal stability, suitable for long use;
The device is simple, the heat is uniform from start to finish, and the temperature can be controlled;
Has explosion-proof, fire-proof, anti-corrosion and other properties;
The electric heating efficiency is high, and the technical effect is wonderful;
The design is simple, the operation is convenient, the labor intensity of the workers is low, and the maintenance volume is low.

The metallurgical group currently uses electric heating for 80% of pipes and valves. Figure 1 is a comparison of steam and electric heating.
At present, electric heating technology has been in operation for 5 years in the iron and steel industry and has been widely recognized among the factory staff, which reduces the labor intensity of workers, reduces energy consumption and equipment maintenance costs, reduces environmental pollution and beautifies the environment. The plant's capacity has improved the heating efficiency, and the application prospects are optimistic. Electric heating is an ideal method of heating gas pipelines and auxiliary equipment.
Related Posts
Electrical heating installation precautions
Electric heating cable is a heating method that uses insulation resistance or resistance heating wire to create a temperature after power supply. It can automatically adjust the output temperature and reasonably maintain the process temperature requirements to keep warm, raise the temperature and protect the heating equipment from freezing. The insulation and antifreeze effect of the container is very good.
Which electric heating should be chosen for the main pipeline transport of heavy oil
Transport of heavy oil through the pipeline over long distances and long-term retention in the pipeline will result in a drop in temperature due to heat dissipation and increased viscosity, which will cause the pipeline to be blocked by freezing or condensation-related accidents. Electric heating is widely used as effective insulation of pipelines and anti-freeze protection.
Which electric heating cable should be considered for a 4 km pipeline
According to the statistics of the Hydrometeorological Center, the average daily minimum temperature at the location of the CNPC tank farm is 5 ° C, and the average daily maximum temperature is 14 ° C. Since the freezing point of the PX is about 15 °C, the supply pipeline needs heat preservation and heating. The oil depot has been in operation for many years without a stable source of steam, therefore, this project is considering the use of electric heating technology.
Application of outdoor electric heating cable in oil main pipelines with high paraffin content
Long-distance crude oil pipelines with a high paraffin content with freezing temperatures above 50 °C. According to the requirements of the production plan of the plant, the volume of oil transportation through the pipeline is 150 thousand rubles. Tons per year, maximum-200 thousand. Tons per year.. According to the thermodynamic analysis of the pipeline, the initial supply temperature of the pipeline is 80 ° C (TN), and the temperature of the end entering the tank is 60 ° C (Tu). Since the transportation temperature needs to be adjusted according to the time of year, it sometimes needs to be transported by heat.
What heating product to choose for main infusion pipelines
In petrochemical engineering, trunk infusion pipelines are the lifeblood of the factories. The temperature in the northern region is too low in winter and the pipeline needs to be insulated to compensate for the heat loss due to the low temperature in winter to ensure the normal operation of the pipeline.
The role of leather tracer cables in the insulation of asphalt main pipelines
The toughness of the asphalt is greatly affected by the temperature. When the temperature decreases, the toughness of the asphalt increases, and the drop in resistance of the asphalt during pipeline transportation increases; when the temperature falls below the freezing point, the asphalt solidifies, causing the pipeline to clog and the conveyor belt to come to trouble. Therefore, electric heating and heat preservation during the transportation of asphalt are very important.