Shandong Huaning Electric Heating Technology Co., Ltd.
Nov 16,2022
Practical example of electric heating in antifreeze and heat preservation of water tank tower
The emergency connection project of a large reservoir in southern Liaoning Province used our electric heating. The design of the voltage stabilization support of this project is located in the field and in the mountainous terrain. In winter, the minimum outside temperature can reach-22 ° C. For insulation and protection from freezing of such remote buildings and structures, the electric heating system is very suitable.
Industry News
Nov 14,2022
Application of electric heating system in freezing of tunnels of Qinghai-Tibet Railway
In the example of the Guanjiao Tunnel of the Qinghai-Tibet Railway, electric heating cables are laid in the side ditch, the central drainage groove of the bulk layer and the hidden drainage pipe outside the tunnel. This can solve the problem of ice accumulation and frost damage and ensure the safety of train traffic.
Industry News
Nov 12,2022
Winter temperatures in the northern region are generally below 0 °C. If the sewer pipes of the liquefied petroleum gas storage tanks are not insulated, sewer pipes or sewer valves will easily crack when frozen, causing serious accidents of liquefied petroleum gas. Leak. Therefore, in the north, it is necessary to take measures to insulate the sewer pipes of liquefied petroleum gas storage tanks.
Industry News
Nov 11,2022
Influence of electric heating on pressure increase in the liquefied petroleum gas storage tank
A tank for the storage of catalyzed liquefied petroleum gas in the refinery, its content is about 63.3% propylene and 36.7% butene. It was found that the pressure of saturated propylene vapor is 1.32 MPa at 30 ° C. and the pressure of saturated butene vapor is 0.35 MPa. After calculation, its saturated steam pressure is 0.82 MPa, which is very close to the working pressure of 0.8 MPa in our normal production. Therefore, we only need to maintain the storage tank temperature at 30 °C in winter to match the performance. Needs.
Industry News
Nov 09,2022
To reduce costs and reduce pollution, petrochemical companies have installed flare gas recycling systems to reuse flare gas. However, due to the moisture contained in the flare gas component of the ethylene plant, freezing and blockage is possible at low temperature in winter, so heat preservation and electric heating must be added to the transport pipeline.
Industry News
Nov 07,2022
Electric heating and temperature maintenance in large crude oil storage tanks mainly consists of winding electric heating cables around the outer wall of storage tanks and using electric heating cables to heat oil in storage tanks to maintain temperature and heat. The electric heating temperature maintenance method has the advantages of simple installation, uniform heating, accurate temperature control, water saving, high heat exchange efficiency, long service life, no environmental pollution, and small design, installation and maintenance.
Industry News
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.
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