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, and achieve good technical results and small deviations in corrosion analysis results

Active Publication Date: 2015-11-18
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 i

Method used

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  • Crude oil storage tank corrosion monitoring device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] [Example 1]

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

Example Embodiment

[0018] [Example 2]

[0019] According to the conditions described in Example 1, only according to experimental needs and actual conditions, a taper of no more than 5° can be applied to the tank bottom in the tank body 2 .

Example Embodiment

[0020] [Example 3]

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

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Abstract

The invention relates to a crude oil storage tank corrosion monitoring device, and mainly solves the problem of inaccurate test data in the prior art. The crude oil storage tank corrosion monitoring device comprises a storage tank body (2), wherein a test liquid inlet (1), a liquid discharge outlet (9), a gas inlet (3) and a gas outlet (7) are formed in the storage tank body (2); a corrosion coupon (4) and a corrosion monitoring electrode (6) are hung at the top of the storage tank body (2); a deoxidization water flush pipe (5) is connected to a position about the corrosion monitoring electrode (6); sacrificial anodes (8) are arranged at the bottom of the tank. Through the technical scheme of the crude oil storage tank corrosion monitoring device, the problem in the prior art is well solved, and the device can be used in crude oil storage tank corrosion monitoring.

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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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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