Anti-coking device for oil-gas line at top of coke tower

Abstract

The invention discloses a coke tower top oil-gas line anti-coking device, and relates to the technical field of oil-gas line anti-coking equipment.The coke tower top oil-gas line anti-coking device comprises a tower top oil-gas line and a coke tower, auxiliary gas outlet pipes are symmetrically and fixedly connected to the two sides of the tower top oil-gas line, and transverse gas outlet pipes are fixedly connected to the tops of the auxiliary gas outlet pipes and the top of the tower top oil-gas line; disks are fixedly connected to the bottoms of the auxiliary gas outlet pipe and the tower top oil gas line, cavities are fixedly formed in the discs, quenching oil is arranged in the cavities, a driving assembly is arranged in the tower top oil gas line, connecting pipes are fixedly connected to the bottoms of the discs, the connecting pipes are fixedly connected with the coke tower, and conical gas inlet cavities are fixedly formed in the connecting pipes. And a sealing plate is connected to the interior of the gas inlet cavity in a sealed mode, a plurality of gas outlet assemblies are arranged on the sealing plate, lead screws are fixedly connected to the tops of the gas outlet assemblies, and lead screw sleeves are rotationally connected into the cavities.

Description

technical field [0001] The invention relates to the technical field of anti-coking equipment for oil and gas lines, in particular to an anti-coking device for oil and gas lines at the top of a coke tower. Background technique [0002] In the petroleum processing flow, the delayed coking process is an important residual oil (heavy oil) processing process. After the raw material is heated to about 500°C by heat exchange and coking furnace, it enters the coke tower for thermal cracking reaction and condensation reaction, and oil gas and solid coke are generated in the coke tower. The oil and gas generated by the pyrolysis reaction enters the fractionation tower through the oil and gas line at the top of the coke tower, and is separated into rich gas and fractions such as naphtha, diesel oil, and wax oil. Solid coke is deposited in the coke tower and is regularly decoked to the coke pool. Coke tower production is intermittent operation, the raw material heated by the heating f...

AI Technical Summary

Problems solved by technology

[0005]First: The existing quenching oil is sprayed on the oil and gas pipeline by spraying the nozzle, so as to rapidly cool down the oil and gas passing through the oil and gas pipeline, and spray cooling The method consumes quenching oil, and the time of quenching oil in contact with oil and gas in the air is short, the heat exchange efficiency is poor, and the cooling effect of quenching oil is low;

[0006]Second: At present, the part of the oil and gas pipeline in contact with the coke tower is prone to coking. Over time, there will be too much coke, which will easily cause the inner diameter of the pipe wall at the connection to shrink , which affects the passage of oil and gas, and the flow of oil and gas is relatively slow

Images