Pyrolysis Plant of Damping Tank Core

The anti-impact plate/diversion cylinder at the inlet of the damping tank is a mandatory core simple internal component, designed specifically to mitigate the impact of high-velocity oil and gas and optimize the flow path of oil and gas. It is adapted to the anti-erosion and easy maintenance requirements of the thermal cracking working conditions, with its core characteristics concentrated in four aspects: structure, material, installation and function, as detailed below:

Structural simplicity, adapted to working conditions

It is mostly a circular/square steel plate or a diversion cylinder inclined downward at 15-30°, without precision components. A gap of 50-100mm is reserved between the anti-impact plate and the inlet pipe, which not only does not obstruct the air flow but also effectively disperses the impact force, and has no dead corners to prevent coking and oil accumulation.

Homogeneous material with the tank body, temperature and corrosion resistant

It is made of the same material as the main body of the damping tank (e.g., Q345R) with a thickness of 8-12mm, capable of withstanding the high temperature of 250-350℃ of cracked oil and gas, and resistant to slight corrosion by sulfides, adapting to the medium characteristics.

Precise installation, directional diversion

It is directly welded to the inner wall of the tank opposite to the oil and gas inlet or the inner end of the inlet pipe, accurately facing the impact direction of the air flow. The diversion cylinder is designed to incline downward, forcing the oil and gas to flow to the middle and lower part of the tank, avoiding direct discharge of air flow from the outlet, extending the residence time of oil and gas, and assisting in improving the effect of secondary sedimentation.

Dual core functions, achieving two goals at one stroke

First, anti-erosion and thinning: it blocks the direct impact of high-velocity oil and gas on the tank wall, avoiding local thinning of the tank body due to long-term erosion and ensuring the structural safety of the equipment. Second, flow field optimization: it disperses high-velocity air flow, homogenizes the flow rate, and guides the air flow to sink at the same time, creating conditions for the sedimentation of heavy oil droplets, and taking into account the auxiliary functions of pressure stabilization and sedimentation.

Welded fixation, easy maintenance

It is integrally welded inside the tank without moving parts, avoiding the risk of loosening during operation. Due to its simple structure and no gap or dead corners, it does not need to be disassembled during later coking cleaning and maintenance, and only surface cleaning is required, adapting to the regular coking cleaning requirements of batch cracking.