Novel refining device pipeline corrosion test piece
A corrosion detection and refining technology, applied in measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve problems such as pipeline corrosion, and achieve the effect of firm assembly, simple structure and easy assembly.
Pending Publication Date: 2018-05-11
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0004] The purpose of the present invention is to provide a new type of refining and chemical equipment pipe corrosion detection test piece to solve the problem of carrying out corrosion detection on the internal surface of the refining and chemical equipment pipeline to directly reflect the long-term corrosion of the inner surface of the pipeline
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[0020] Such as figure 1 , figure 2 As shown, this embodiment provides a new type of test piece for pipeline corrosion detection of refining and chemical equipment, including a main test piece 1 , a first flange 21 and a second flange 22 . The main test piece 1 includes a first sleeve 11, a second sleeve 12 and a third sleeve 13 arranged coaxially, the second sleeve 12 is fixedly connected to the left end surface of the first sleeve 11, and the third sleeve 13 is fixedly connected to The right end face of the first sleeve 11, the inner surface of the second sleeve 12 is aligned with the inner surface of the first sleeve 11, the outer surface of the third sleeve 13 is aligned with the outer surface of the first sleeve 11, and the second sleeve 12 is aligned with the outer surface of the first sleeve 11. The sum of the wall thickness of the barrel 12 and the wall thickness of the third sleeve 13 is equal to the wall thickness of the first sleeve 11 . After multiple tests, the ...
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Abstract
The invention provides a novel refining device pipeline corrosion test piece. The test piece comprises a first sleeve, a second sleeve and a third sleeve which are coaxially arranged, the second sleeve is fixedly connected with the left end surface of the first sleeve, the third sleeve is fixedly connected with the right end surface of the first sleeve, the inner surface of the second sleeve is aligned with the inner surface of the first sleeve, the outer surface of the third sleeve is aligned with the outer surface of the first sleeve, and the sum of the wall thickness of the second sleeve and the wall thickness of the third sleeve is equal to the wall thickness of the first sleeve. The test piece has the following advantages: the structure is simple, and the test piece is assembled in a"plugging" manner, so the test piece is convenient to assemble, and is firmly assembled; and the test piece is assembled in a refining device pipeline, and the actual working conditions of the refining device pipeline is simulated accumulative corrosion data similar to corrosion coupons can be collected, so the corrosion detection of the refining device pipeline enables corrosion from the inside is realized in order to directly and accurately reflect the long-term actual corrosion condition of the inner surface of the refining device pipeline.
Description
technical field [0001] The invention relates to the technical field of pipeline corrosion detection for refining and chemical equipment, in particular to a novel pipeline corrosion detection test piece for refining and chemical equipment. Background technique [0002] As oil exploration enters the middle and late stages, the degree of crude oil deterioration is increasing, and the corrosion problem brought to refining and chemical equipment is still an important factor that threatens the safe and stable operation of refining and chemical equipment. In recent years, some enterprises of Sinopec have found that there is relatively serious equipment corrosion in refining and chemical equipment during the overhaul corrosion investigation. Through corrosion testing, some enterprises have also found that the corrosion of equipment has intensified significantly, and there have even been problems such as corrosion leaks and fires in atmospheric towers, thinning of the wall of decompr...
Claims
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IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 兰正贵刘小辉韩磊张艳玲亓婧
Owner CHINA PETROLEUM & CHEM CORP