CN108020499A - New refinery installs pipes Corrosion monitoring test specimen - Google Patents
New refinery installs pipes Corrosion monitoring test specimen Download PDFInfo
- Publication number
- CN108020499A CN108020499A CN201610971645.9A CN201610971645A CN108020499A CN 108020499 A CN108020499 A CN 108020499A CN 201610971645 A CN201610971645 A CN 201610971645A CN 108020499 A CN108020499 A CN 108020499A
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- sleeve
- refinery
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- flange
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- 238000005260 corrosion Methods 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims abstract description 49
- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims description 11
- 230000007774 longterm Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000010779 crude oil Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention proposes that a kind of new refinery installs pipes Corrosion monitoring test specimen, including coaxially arranged the first sleeve, second sleeve and 3rd sleeve, second sleeve is fixedly connected with the left side of the first sleeve, 3rd sleeve is fixedly connected with the right side of the first sleeve, the inner surface of second sleeve aligns with the inner surface of the first sleeve, the outer surface of 3rd sleeve is alignd with the outer surface of the first sleeve, and the sum of the wall thickness of second sleeve and the wall thickness of 3rd sleeve are equal to the wall thickness of the first sleeve.Beneficial effects of the present invention are：It is simple in structure, assembled by way of " grafting ", easy to assemble, assembling is firm；Test specimen is assemblied in refinery installs pipes, the actual condition that fitting refinery installs pipes, the accumulative corrosion data similar to corrosion coupon can be collected, realize and Corrosion monitoring carried out from inside to the pipeline of refinery device, with directly, accurately reflect refinery and install pipes the long-term actual corrosion condition of inner surface.
Description
Technical field
Install pipes Corrosion monitoring technical field the present invention relates to refinery, install pipes more particularly to a kind of new refinery
Corrosion monitoring test specimen.
Background technology
As oil exploitation enters the middle and later periods, crude oil in poor quality degree is increasingly sharpened, and the corrosion come to refinery device band is asked
Topic is still an important factor for threatening refinery equipment safety even running.In recent years, the Some Enterprises of Sinopec are rotten in general overhaul
Find that there are more serious equipment corrosion for refinery device in erosion investigation.Some Enterprises are by Corrosion monitoring it has also been found that equipment corrosion
Obvious aggravation, or even atmospheric tower occurred and corrodes the problem of leakage is caught fire, vacuum tower tower wall is thinned, tower internals heavy corrosion.One
Enterprises are subject to the salt crust at tower top low temperature position and corrosion to perplex a bit, as the circulation of catalysed fractionation tower top, coking fractional distillation column top are circulated, often
Chang Yizhong, Atmospheric Tower system etc. are depressurized, the normal even running of refinery device is influenced and even stops, it is necessary to carry out online washing
Work processing.
Detection for corrosion of equipment, at present generally using lacing film, spot thickness measurement, corrosion probe, corrosive medium analysis and
Some nondestructiving detecting means find etching problem.For long-term corrosion impact, lacing film is more accurate, so stopping work in device
Period, equipment inside can install some corrosion coupons.But corrosion coupon can not be installed in the pipeline of refinery device, thus only
Corrosion monitoring can be carried out from the exterior of pipeline, deviation is easily produced in the exterior development Corrosion monitoring of pipeline and it is difficult to reflection is long-term
Accumulative corrosion condition.
The content of the invention
Install pipes Corrosion monitoring test specimen, solved to refinery device it is an object of the invention to provide a kind of new refinery
Pipeline carries out the problem of Corrosion monitoring is directly to reflect inner surface of pipeline long-term corrosion situation from inside.
The present invention provides a kind of new refinery and installs pipes Corrosion monitoring test specimen, including the first coaxially arranged sleeve, the
Two sleeves and 3rd sleeve, second sleeve are fixedly connected with the left side of the first sleeve, and 3rd sleeve is fixedly connected with the first sleeve
Right side, the inner surface of second sleeve align with the inner surface of the first sleeve, and the outer surface of 3rd sleeve is outer with the first sleeve
Surface in alignment, the sum of the wall thickness of second sleeve and the wall thickness of 3rd sleeve are equal to the wall thickness of the first sleeve.
Further, the material of the first sleeve, second sleeve and 3rd sleeve is identical with the material that refinery installs pipes.
Further, the wall thickness of the first sleeve is 3 millimeters.
Further, first flange and second flange, first flange and second sleeve assembly connection, second flange are further included
With 3rd sleeve assembly connection.
Further, first flange includes first flange disk and the first assembling sleeve, and the end face of first flange disk, which is fixed, to be connected
Connect the end face of the first assembling sleeve, second sleeve is sticked in the inner surface of the first assembling sleeve, the wall thickness of the first assembling sleeve with
The sum of wall thickness of second sleeve is equal to the wall thickness of the first sleeve, inner surface and the interior table at first flange dish opening of second sleeve
In face of neat.
Further, second flange includes second flange disk and the second assembling sleeve, and the end face of second flange disk, which is fixed, to be connected
Connect the end face of the second assembling sleeve, 3rd sleeve is sticked in the outer surface of the second assembling sleeve, the wall thickness of the second assembling sleeve with
The sum of wall thickness of 3rd sleeve is equal to the wall thickness of the first sleeve, inner surface and the interior table at second flange dish opening of the first sleeve
In face of neat.
Further, the material of first flange and second flange is identical with the material that refinery installs pipes.
Compared with prior art, new refinery of the invention install pipes Corrosion monitoring test specimen have the characteristics that with it is excellent
Point：
1st, new refinery of the invention installs pipes Corrosion monitoring test specimen, simple in structure, is assembled by way of " grafting ",
Easy to assemble, assembling is firm；
2nd, new refinery of the invention installs pipes Corrosion monitoring test specimen, test specimen is assemblied in refinery installs pipes, patch
The actual condition that refinery installs pipes is closed, the accumulative corrosion data similar to corrosion coupon can be collected, realizes and refinery is filled
The pipeline put carries out Corrosion monitoring from inside, with directly, accurately reflect refinery and install pipes the long-term actual corrosion of inner surface
Situation.
After the embodiment of the present invention is read in conjunction with the figure, the features and advantages of the invention will become clearer.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is that new refinery installs pipes the sectional view of Corrosion monitoring test specimen in the embodiment of the present invention；
Fig. 2 is that new refinery installs pipes Corrosion monitoring test specimen assembling schematic diagram in the embodiment of the present invention；
1st, main test specimen, the 11, first sleeve, 12, second sleeve, 13,3rd sleeve, 21, first flange, 211, first flange
Disk, the 212, first assembling sleeve, 22, second flange, 221, second flange disk, the 222, second assembling sleeve.
Embodiment
As shown in Figure 1 and Figure 2, install pipes Corrosion monitoring test specimen, including main test specimen the present embodiment provides a kind of new refinery
1st, first flange 21 and second flange 22.Main test specimen 1 includes coaxially arranged the first sleeve 11, second sleeve 12 and 3rd sleeve
13, second sleeve 12 is fixedly connected with the left side of the first sleeve 11, and 3rd sleeve 13 is fixedly connected with the right side of the first sleeve 11,
The inner surface of second sleeve 12 aligns with the inner surface of the first sleeve 11, and the outer surface of 3rd sleeve 13 is outer with the first sleeve 11
Surface in alignment, the sum of the wall thickness of second sleeve 12 and the wall thickness of 3rd sleeve 13 are equal to the wall thickness of the first sleeve 11.Through repeatedly examination
Verification, the wall thickness of the first sleeve 11 in the present embodiment are chosen to be 3 millimeters, can meet that refinery installs pipes Corrosion monitoring
It is required that.The first sleeve 11, second sleeve 12 and the 3rd sleeve 13 of main test specimen 1 be monolithically fabricated one end be boss, one end be groove
Structure, multiple main test specimens 1 are directly connected by way of " grafting ", specifically, the second sleeve of a main test specimen 1
The 3rd sleeve 13 of another main test specimen 1 of 12 grafting.The sum of the wall thickness of second sleeve 12 and the wall thickness of 3rd sleeve 13 are equal to the
The wall thickness of one sleeve 11, can make the tubular structure wall thickness that multiple connections of main test specimen 1 are formed identical, so as to be bonded refinery device pipe
The actual condition in road, and can also make to assemble firmly by second sleeve 12 and 3rd sleeve 13 between multiple main test specimens 1.It is main
The outside diameter of test specimen 1 is slightly less than the internal diameter that refinery installs pipes, and multiple main test specimens 1 are positioned over refinery installs pipes inside, refinery
Process stream (such as crude oil) in installing pipes flows through the first sleeve 11, second sleeve 12 and the 3rd sleeve 13 of main test specimen 1
Inner surface, so as to obtain the corrosion condition of main test specimen 1 under process conditions, by the experiment of a period of time, can collect with
The similar accumulative corrosion data of corrosion coupon, by the detection to main test specimen 1, can directly, accurately reflect in refinery installs pipes
The long-term actual corrosion condition on surface.
As shown in Figure 1 and Figure 2, first flange 21 and 12 assembly connection of second sleeve, second flange 22 are filled with 3rd sleeve 13
With connection, so that multiple main test specimens 1 are assemblied on refinery installs pipes.First flange 21 includes first flange disk 211 and first
Sleeve 212 is assembled, the end face of first flange disk 211 is fixedly connected with the end face of the first assembling sleeve 212, and second sleeve 12 is sticked in
The inner surface of first assembling sleeve 212, the sum of the wall thickness of the first assembling sleeve 212 and the wall thickness of second sleeve 12 are equal to first set
The wall thickness of cylinder 11, the inner surface of second sleeve 12 align with the inner surface of 211 opening of first flange disk.Second flange 22 includes
Second flange disk 221 and second assembles sleeve 222, and the end face of second flange disk 221 is fixedly connected with the end of the second assembling sleeve 222
Face, 3rd sleeve 13 are sticked in the outer surface of the second assembling sleeve 222, the wall thickness and 3rd sleeve 13 of the second assembling sleeve 222
The sum of wall thickness be equal to the wall thickness of the first sleeve 11, the inner surface of the first sleeve 11 and the interior table of 221 opening of second flange disk
In face of neat.First flange 21, multiple main test specimens 1, second flange 22 engage jointly, is assemblied in refinery install pipes in, second set
The sum of wall thickness of wall thickness and the 3rd sleeve 13 of cylinder 12 is equal to the wall thickness of the first sleeve 11, the wall thickness of the first assembling sleeve 212 with
The sum of wall thickness of second sleeve 12 is equal to the wall thickness of the first sleeve 11, the wall thickness and 3rd sleeve 13 of the second assembling sleeve 222
The sum of wall thickness be equal to the first sleeve 11 wall thickness, can make multiple main test specimens 1 and multiple main test specimens 1 respectively with first flange 21
It is identical with the tubular structure wall thickness that the connection of second flange 22 is formed, so that the actual condition that more fitting refinery installs pipes, and
And can also make to assemble firmly by the first assembling sleeve 212 and second sleeve 12 between multiple main test specimens 1 and first flange 21,
Make to assemble firmly by second flange disk 221 and 3rd sleeve 13 between multiple main test specimens 1 and second flange 22.Wherein, first
Sleeve 11, second sleeve 12,3rd sleeve 13, first flange 21 and second flange 22 can be chosen different according to test requirements document
Material, the material of the first sleeve 11, second sleeve 12,3rd sleeve 13, first flange 21 and second flange 22 in the present embodiment
Matter is identical with the material that refinery installs pipes.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention, should also belong to the present invention's
Protection domain.
Claims (7)
- The Corrosion monitoring test specimen 1. a kind of new refinery installs pipes, it is characterised in that：Including the first coaxially arranged sleeve, second Sleeve and 3rd sleeve, second sleeve are fixedly connected with the left side of the first sleeve, and 3rd sleeve is fixedly connected with the right side of the first sleeve End face, the inner surface of second sleeve align with the inner surface of the first sleeve, the outer surface of 3rd sleeve and the appearance of the first sleeve In face of neat, the sum of the wall thickness of second sleeve and the wall thickness of 3rd sleeve are equal to the wall thickness of the first sleeve.
- The Corrosion monitoring test specimen 2. new refinery according to claim 1 installs pipes, it is characterised in that：First sleeve, The material of two sleeves and 3rd sleeve is identical with the material that refinery installs pipes.
- The Corrosion monitoring test specimen 3. new refinery according to claim 1 installs pipes, it is characterised in that：The wall of first sleeve Thickness is 3 millimeters.
- The Corrosion monitoring test specimen 4. new refinery according to any one of claims 1 to 3 installs pipes, it is characterised in that：Also Including first flange and second flange, first flange and second sleeve assembly connection, second flange and 3rd sleeve assembly connection.
- The Corrosion monitoring test specimen 5. new refinery according to claim 4 installs pipes, it is characterised in that：First flange includes First flange disk and the first assembling sleeve, the end face of first flange disk is fixedly connected with the end face of the first assembling sleeve, second sleeve The inner surface of the first assembling sleeve is sticked in, the sum of the wall thickness of the first assembling sleeve and the wall thickness of second sleeve are equal to the first sleeve Wall thickness, the inner surface of second sleeve aligns with the inner surface at first flange dish opening.
- The Corrosion monitoring test specimen 6. new refinery according to claim 4 installs pipes, it is characterised in that：Second flange includes Second flange disk and the second assembling sleeve, the end face of second flange disk is fixedly connected with the end face of the second assembling sleeve, 3rd sleeve The outer surface of the second assembling sleeve is sticked in, the sum of the wall thickness of the second assembling sleeve and the wall thickness of 3rd sleeve are equal to the first sleeve Wall thickness, the inner surface of the first sleeve aligns with the inner surface at second flange dish opening.
- The Corrosion monitoring test specimen 7. new refinery according to claim 4 installs pipes, it is characterised in that：First flange and The material of two flanges is identical with the material that refinery installs pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971645.9A CN108020499A (en) | 2016-10-31 | 2016-10-31 | New refinery installs pipes Corrosion monitoring test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971645.9A CN108020499A (en) | 2016-10-31 | 2016-10-31 | New refinery installs pipes Corrosion monitoring test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108020499A true CN108020499A (en) | 2018-05-11 |
Family
ID=62083636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610971645.9A Pending CN108020499A (en) | 2016-10-31 | 2016-10-31 | New refinery installs pipes Corrosion monitoring test specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108020499A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024119601A1 (en) * | 2022-12-06 | 2024-06-13 | 宁德时代新能源科技股份有限公司 | Thermal management system for battery, battery, and electric device |
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| WO2024119601A1 (en) * | 2022-12-06 | 2024-06-13 | 宁德时代新能源科技股份有限公司 | Thermal management system for battery, battery, and electric device |
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