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Oil refining device fractionating tower top corrosion risk monitoring system

A technology for oil refining equipment and risk monitoring, which is applied in the directions of measuring equipment, weather resistance/light resistance/corrosion resistance, analysis materials, etc., and can solve the problems of corrosion risk and difficulty

Pending Publication Date: 2021-09-10
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Description
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Problems solved by technology

[0004] Based on the problem that the corrosion risk of the fractionation tower top of the refinery unit is difficult to prevent and control in time in the prior art, the purpose of the embodiment of the present invention is to provide a long-term real-time online monitoring of the corrosion parameters of the fractionation tower top of the refinery unit, which can detect the corrosive medium in time Corrosion Risk Monitoring System for Fractionation Tower Top of Oil Refining Units

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  • Oil refining device fractionating tower top corrosion risk monitoring system
  • Oil refining device fractionating tower top corrosion risk monitoring system

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Embodiment 1

[0048] combine figure 1 and figure 2 , Atmospheric fractionation tower 6 of an atmospheric and vacuum unit is equipped with an oil refinery fractionation tower top corrosion risk monitoring system of the present invention, including an online measurement system 1, a data acquisition system 2, a data processing system 3 and an explosion-proof system 5. The on-line pH meter 11 in the on-line measurement system 1 uses an anti-sulfide poisoning sensor; the on-line chloride ion measuring instrument 12 uses the chloride ion selective electrode method with a range of 0-500 mg / L; the on-line iron ion measuring instrument 13 uses o-phenanthroline spectroscopic Photometric method, measuring range is 0~8mg / L; On-line sulfide measuring instrument 14 adopts sulfur ion indicating electrode titration method, measuring range is 0~500mg / L; Online ammonia nitrogen measuring instrument 15 adopts gas sensitive electrode method, measuring range is 0~1000mg / L L. The on-line measurement system 1 ...

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Abstract

The invention provides an oil refining device fractionating tower top corrosion risk monitoring system. The oil refining device fractionating tower top corrosion risk monitoring system provided by the invention comprises an on-line measuring system for on-line monitoring the pH value of a fluid medium at the fractionating tower top and the content of a corrosive medium in the fluid medium, a data acquisition system which is used for acquiring real-time monitoring data acquired by the online measurement system through online monitoring in real time and transmitting the real-time monitoring data acquired by the data acquisition unit in real time, and a data processing system which is used for processing and analyzing the received real-time monitoring data in real time. The pH value of the fluid medium at the top of the fractionating tower and the content of chloride ions, iron ions, sulfides and ammonia nitrogen in the fluid medium are monitored on line in real time, so that the pH value of the fluid medium at the top of the fractionating tower of an oil refining device and the content of each corrosion factor in the fluid medium can be rapidly measured in real time for a long time, the corrosion risk of the top of the fractionating tower is monitored on line, and the corrosion risk is further reduced.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion of oil refining equipment, and in particular relates to a corrosion risk monitoring system for the top of a fractionation tower of an oil refining equipment. Background technique [0002] Corrosion problems usually exist in chemical production processes such as petrochemical, coal gasification, and steel. Corrosion can cause damage to equipment, and the lack of monitoring of corrosion risk occurrence processes will affect the safety, stability, and long-term operation of refinery units. The top of the fractionating tower of the refinery is generally susceptible to corrosion by factors such as the pH value of the fluid medium, chloride ions, iron ions, sulfides, and ammonia nitrogen in the fluid medium, especially the above corrosion parameters (pH value of the fluid medium, chloride ions, iron ions in the fluid medium, etc.) , sulfide and ammonia nitrogen) exceed the warning value, it will i...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 朱文胜尚跃再汉继程夏渊缪磊官自超刘博朱国利
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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