Decoking control system

Abstract

The present invention discloses a decoking control system, which comprises: a top cover machine subsystem and a bottom cover machine subsystem; a drilling tool control subsystem, wherein the drilling tool control subsystem comprises a top portion driving device, a drilling machine winch controller and a sensor, the top portion driving device is used for controlling the rotation of a drilling tool, the drilling machine winch controller is used for controlling a drilling machine winch so as to control the lifting of the drilling tool, and the sensor is used for collecting site information; a water pump control subsystem, wherein the water pump control subsystem comprises a water pump outlet control valve, a decoking control valve, a tower top block valve and a monitoring instrument, and the decoking control valve is used for controlling the output flow rate of the water pump; and a central control subsystem, wherein the central control subsystem receives the information from other subsystems, analyzing the received information, and sends control commands to other subsystems. With the decoking control system of the present invention, the remote automated decoking can be achieved.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a decoking control system. Background technique [0002] Petroleum refining operations, which process crude oil into gasoline, diesel, lubricants, etc., often produce residual oils. Resid can be processed into valuable hydrocarbon products using delayed cokers. In a delayed coker, the resid is heated in a furnace to a temperature sufficient to produce decomposition distillation, where most of the resid is converted, or "cracked," into usable hydrocarbon products, while the remainder forms petroleum coke (referred to as coke ) deposits green coke in the coke drum. When the coke tower reaches a certain height, stop feeding, and switch to another coke tower for coke. After switching, the coke in the old tower will first go through a series of cooling treatments, and then be removed. The process of removing coke is called decoking. The whole decoking process can be divided i...

AI Technical Summary

Problems solved by technology

However, since the control of key components such as drill pipes is still controlled manually, and there is a lack of complete monitoring and process control, a fully automatic decoking system that can be remotely controlled is far from being formed. Decoking

[0004] In the on-site decoking operation, on the one hand, harmful gases and / or coke may leak or drift out when the top / bottom cover machine of the coke tower is opened / closed, endangering the health of on-site workers

And repetitive labor can easily make operators lose safety awareness

In China, fire accidents in the coke tower area caused by mis-opening of the top cover machine, mis-opening or mis-closing of high-temperature valves, etc. have occurred from time to time. Life safety is seriously threatened

On the other hand, operators rely on experience to operate, which is prone to misjudgment, causing accidents such as jacking and unclean decoking, which will not only pollute the environment, but also bring safety hazards to the operation of the coking unit

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