Shandong Huaning Electric Heating Technology Co., Ltd.
Application of electric heating in large port equipment
Pipeline insulation generally uses electric heating, which is an effective measure of pipe insulation and freezing protection and is a trend of technological development aimed at replacing heating with steam and hot water.
May 26,2023
At present, electric heating is commonly used to insulate the pipeline, which is an effective measure of pipeline insulation and anti-freeze protection. Electric heating has a small temperature gradient and a long time of thermal stability, which is suitable for long-term use. The required heat (electric power) is much lower than that of electric heating., has the advantages of high thermal efficiency, energy saving, Convenient design and installation, long service life, and can realize remote control and automatic control. Steam heating and hot water. The working principle of electric heating and heat preservation is to dissipate a certain amount of heat through a heat heater, which directly or indirectly uses heat exchange to make up for the losses of the heated pipe, in order to meet the operating requirements for temperature rise, heat preservation, or antifreeze.
Heat preservation design is to wind the heating cable onto the pipe, and the heating cable is supplemented with the appropriate electrical components to make it normally powered and diffused, so as to achieve the heat preservation effect.
A major port company in the north used a pipeline electric heating system for large-sized mobile equipment in the port. After many years of practice, the electric heating and thermal insulation system started working normally, confirming the suitability of the heating cable and making the water cable dust removal system more advanced, which can be operated all year round. Practice has shown that the self-regulating electric heating cable not only has the characteristics of ordinary hose, but also can be wound on the cable coil as needed, and also has a certain bending and tensile resistance, which meets the requirements of the drum type water cable. Dust removal system.
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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.
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