Liquid Sulfur Pipeline Electric Heating Installation Example

Published on:

2023-01-05 11:03

Electric heating is a method of heating that uses electrical energy to heat along the length of the line or generate uniform heat on a large plane to compensate for the heat consumption of the accompanying material in the process, thereby maintaining the temperature of the medium. Compared with the traditional steam heating in the petrochemical industry, it has the advantages of simple equipment, uniform heat production, accurate temperature, environmental pollution reduction, energy saving and low operating costs.

Sulfur is a light yellow crystal at room temperature, with a melting point of 112-119 °C. Liquid sulfur has a unique viscosity-temperature property, has a low viscosity of 10-14 cp at 130-155 ° C., and the best fluidity; when the temperature is above 165 ° C., the viscosity directly increases, reaching more than 800 cp; when the temperature is above 190 ° C., the viscosity becomes smaller again. Therefore, in order to achieve the best state of infusion sulfur, its temperature must be maintained in the range of 130-155 °C. The gray is a light yellow crystal at room temperature, with a melting point of 112-119 °C. Liquid sulfur has a unique viscosity-temperature property, has a low viscosity of 10-14 cp at 130-155 ° C., and the best fluidity; when the temperature is above 165 ° C., the viscosity directly increases, reaching more than 800 cp; when the temperature is above 190 ° C., the viscosity becomes smaller again. Therefore, in order to achieve the best state of infusion sulfur, its temperature must be maintained in the range of 130-155 ° C. v 、

Sulfur is a light yellow crystal at room temperature, with a melting point of 112-119 ° C. Liquid sulfur has a unique viscosity-temperature property, has a low viscosity of 10-14 cp at 130-155 ° C., and the best fluidity; when the temperature is above 165 ° C., the viscosity directly increases, reaching more than 800 cp; when the temperature is above 190 ° C., the viscosity becomes smaller again. Therefore, in order to achieve the best state of infusion sulfur, its temperature must be maintained in the range of 130-155 °C. The gray is a light yellow crystal at room temperature, with a melting point of 112-119 °C. Liquid sulfur has a unique viscosity-temperature property, has a low viscosity of 10-14 cp at 130-155 ° C., and the best fluidity; when the temperature is above 165 ° C., the viscosity directly increases, reaching more than 800 cp; when the temperature is above 190 ° C., the viscosity becomes smaller again. Therefore, in order to achieve the best state of infusion sulfur, its temperature must be maintained in the range of 130-155 °C.

According to the above conditions, given that there are junction boxes near both ends of the pipeline, it is determined that the power supply is supplied from the middle of the two ends, and the length of each line is 500mm. According to the calculation of the heat loss of the pipeline and the heat required for heating the material, 9 single-core serial electric heating cables were selected and laid in parallel, and the power supply was three-phase 380 V.

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