Shandong Huaning Electric Heating Technology Co., Ltd.
The skin effect heating cables can be used for oil trunk pipelines on offshore platforms.
Marine platforms use electric heating due to lack of space. Electric heating is safe, reliable and convenient in construction. The daily maintenance workload is low, the effective energy utilization rate is high, and the operating cost is low, the maintained temperature can be effectively controlled to prevent overheating of the pipeline environment. The offshore platforms use electric heating due to lack of space. Electric heating is safe, reliable and convenient in construction. The daily maintenance workload is small, the effective energy utilization rate is high, and the operating cost is low, the maintained temperature can be effectively controlled to prevent overheating of the pipeline environment.
Mar 09,2023
According to the characteristics of the transport environment, the pipeline can be divided into non-insulated pipeline, insulated pipeline and thermally insulated pipeline. Gasoline, kerosene, etc. D. Usually not transported by insulated pipelines, agricultural diesel, fuel oil, periodically transported crude oil, etc. D. Are usually transported through electrically heated insulated pipelines, and continuous crude oil is usually transported through insulated pipelines. The purpose of heat preservation is to reduce heat loss and save energy. Satisfy the production process, maintain and develop production capacity, and prevent surface burns and improve the working environment.
Three electric heating methods are commonly used: the accompanying pipe, the jacketed pipe, and the electric heating cable. The heating medium includes hot water, steam, thermal oil, and electrical energy. Marine platforms use electric heating due to lack of space. Electric heating is safe, reliable and convenient in construction. The daily maintenance workload is small, the effective energy utilization rate is high, and the operating cost is low, the maintained temperature can be effectively controlled to prevent overheating of the pipeline environment.
Electric heating of pipelines is a new technology and a new technology for electric heating and heat preservation in the heat transmission pipelines of petrochemical and other enterprises. Oil, high-condensing oil) pipelines and heating. The leather effect heating method mainly consists of four parts: oil pipe, heating pipe (including heat-resistant cable), insulation layer and protective shell. Both the oil pipeline and the heating pipe are ordinary steel pipes, the diameter of the heating pipe is about 15-40mm, they are welded to the oil pipe by intermittent welding. Depending on the diameter of the pipe and the heating temperature, electric heating with a skin effect can be divided into single-tube, double-tube and three-tube. The heat-resistant cable is put into an electric heating pipe, and an alternating current of electrical phase is supplied to one end of the cable. When the AC is passed through the cable and the heating pipe, due to the skin effect and proximity effect, the current is unevenly closed Twenty Concentrate on the inner surface of the heating tube to flow. The cross-section of the surface layer wire on the pipe wall is reduced, and the angular force resistance is greatly increased. With the same current, the heating pipe receives a large electric heating power, and the oil pipeline is heated by thermal conductivity.
If the heat capacity of the heating element simply compensates for the heat loss under normal conditions, not only the start time will be large, but the utilization rate of the pipeline will also be low. In order to start heating, you need a little more electric heating power. However, if the power is too large, the start time will be short. Although heat energy can be saved, the cost of equipment will increase. Operating fees will increase during normal operations. Therefore, it is necessary to determine the total operating time, physical time and number of starts and stops during the year to determine the most economical thermal power.
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.
Need help to find the right solution with our experts?
WhatApp:
E-mail:
Address:
Xinxing Street, Industrial Park, Shanghe County, Jinan City, Shandong Province
✪ Huaning Electric Heat Tracing provides you with professional solutions
