Crude oil storage tank corrosion monitoring device

A technology for corrosion monitoring and crude oil storage tanks, which is applied in the field of corrosion monitoring devices for crude oil storage tanks, can solve problems such as inaccurate test data, achieve good technical effects and small deviations in corrosion analysis results.

Active Publication Date: 2018-05-15
CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the problem of inaccurate test data in the prior art, and a new continuous monitoring device for corrosion of crude oil storage tanks is provided

Method used

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  • Crude oil storage tank corrosion monitoring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A crude oil storage tank corrosion monitoring device, comprising a storage tank body 2, on which an experimental liquid inlet 1, a liquid outlet 9, a gas inlet 3, and a gas outlet 7 are opened, and a corrosion coupon 4 and a corrosion coupon are hung on the top of the tank. The corrosion monitoring electrode 6 is connected with a deoxygenated water flushing pipe 5 near the corrosion monitoring electrode 6, and sacrificial anodes 8 are arranged at the bottom of the tank, and the number of sacrificial anodes is calculated according to the above formula. The experimental liquid inlet 1 is connected to the tank bottom water discharge pipeline of the crude oil storage tank through a pipeline.

Embodiment 2

[0019] According to the conditions described in Example 1, only according to the needs of the experiment and the actual situation, a taper not greater than 5° can be applied to the tank bottom plate in the tank body 2 .

Embodiment 3

[0021] According to the conditions described in Example 1, according to the experimental needs and actual conditions, a heating device and a heat preservation device are provided outside the storage tank body 2 to keep the temperature inside the tank at a constant value.

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PUM

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Abstract

The invention relates to a crude oil storage tank corrosion monitoring device, which mainly solves the problem of inaccurate test data in the prior art. The present invention adopts a crude oil storage tank corrosion monitoring device, comprising a storage tank body (2), on which an experimental liquid inlet (1), a liquid discharge port (9), a gas The inlet (3), the gas outlet (7), the corrosion coupon (4) and the corrosion monitoring electrode (6) are hung on the top of the tank body storage tank (2), and the oxygen removal device is connected near the corrosion monitoring electrode (6). The technical solution of the water flushing pipe (5) and the sacrificial anode (8) at the bottom of the tank solves the above problems well, and can be used for corrosion monitoring of crude oil storage tanks.

Description

technical field [0001] The invention relates to a crude oil storage tank corrosion monitoring device. Background technique [0002] During the storage process of crude oil storage tanks, crude oil itself does not corrode metal materials, but crude oil contains some corrosive impurities, such as inorganic salts, sulfides, organic acids, carbon dioxide and water, etc., and there is also dissolved oxygen in crude oil. With the prolongation of crude oil storage time, water dissolved with various corrosive impurities is continuously precipitated from the crude oil, thereby causing corrosion to the bottom plate of the storage tank. Regular overhaul of the storage tank is an important means to avoid corrosion and perforation of the storage tank. Traditionally, the overhaul period of crude oil storage tanks is determined based on experience. However, with the continuous deterioration of crude oil, the continuous increase of pipe volume and the extension of the overhaul period of cru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/02
Inventor 黄贤滨肖成磊宋晓良
Owner CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG
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