Back to Overview

Electric heating system for extinguishing fire in the area of the oil tank

As soon as a fire and explosion occurs at the oil depot, this will lead to serious human casualties, so the design of fire protection for the tank farm has become a top priority. In order to ensure the reliable use of the fire protection system in winter and realize the insulation and antifreeze of the fire protection pipeline, the fire protection pipeline in the oil depot should take insulation measures.

Mar 10,2023

The storage environment in the oil tank area has the characteristics of flammability, explosion and strong flow and diffusion. Fires and explosions in the oil tank area have the characteristics of rapid flame propagation, high combustion rate, high calorific value and strong thermal radiation Crude oil storage tanks and heavy oil Long-time combustion can also cause a boiling accident. As soon as a fire and explosion occurs at the oil depot, this will lead to serious human casualties, so the design of fire protection for the tank farm has become a top priority.

Large-sized vertical storage tanks are widely used in petrochemical plants, in addition to stationary fire cooling water installations. In addition to the fire extinguishing system with fire extinguishing foam, appropriate heating measures such as the addition of fire abacus are also required. However, in a cold winter at temperatures below 0 ° C, the water in the fire-fighting pipeline is in a static state and freezes easily, which leads to the unusable fire extinguishing system of the tank farm. Therefore, it is necessary to insulate the fire extinguishing pipeline. Due to the lack of ancillary facilities around the oil tank, general fire pipes use electric heating to keep them warm. Since the oil tank zone is a fire and explosion zone, the electric heating cable must be non-combustible, explosion-proof and anti-corrosion.

The principle of antifreeze technology for electric heating of the fire pipe is to attach the heating cable to the outside of the pipe to generate electricity, transfer the heat of the liquid in the pipe, and interact with the outer insulation layer of the pipe to compensate for and maintain the temperature of the liquid in the pipe to achieve the calculated temperature level.

With the rapid development of the equipment economy and the increase in the amount of petroleum products used in various places, people's demand for petroleum products is also increasing, which makes oil-related companies continue to grow. Oil production and storage poses a very big security threat that requires more attention. In order to ensure the reliable use of the fire protection system in winter and realize the insulation and antifreeze of the fire protection pipeline, the fire protection pipeline in the oil depot should take insulation measures. Conventional heat preservation can only delay the freezing time of pipelines, but cannot fundamentally solve the problem of antifreeze. A heating line must be laid between the pipeline and the insulation layer to compensate for the heat loss of the pipeline, keep its temperature within the normal operating range and actually achieve the antifreeze effect of the pipeline.

The principle of antifreeze technology for the electric heating of the fire pipe is to attach the heating cable to the outside of the pipe to generate electricity, transfer the heat of the liquid in the pipe, and interact with the outer insulation layer of the pipe to compensate and maintain the temperature of the liquid in the pipe to achieve the calculated temperature level.

With the rapid development of the equipment economy and the increase in the amount of petroleum products used in various places, people's demand for petroleum products is also increasing, which makes oil-related companies continue to grow. Oil production and storage poses a very big security threat that requires more attention. In order to ensure the reliable use of the fire protection system in winter and realize the insulation and antifreeze of the fire protection pipeline, the fire protection pipeline in the oil depot should take insulation measures. Conventional heat preservation can only delay the freezing time of pipelines, but cannot fundamentally solve the problem of antifreeze. A heating line must be laid between the pipeline and the insulation layer to compensate for the heat loss of the pipeline, keep its temperature within the normal operating range and actually achieve the antifreeze effect of the pipeline.

TAG:

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.