CN1176362C - High-temp high-flow-speed outwash experiment equipment - Google Patents
High-temp high-flow-speed outwash experiment equipment Download PDFInfo
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- CN1176362C CN1176362C CNB01106059XA CN01106059A CN1176362C CN 1176362 C CN1176362 C CN 1176362C CN B01106059X A CNB01106059X A CN B01106059XA CN 01106059 A CN01106059 A CN 01106059A CN 1176362 C CN1176362 C CN 1176362C
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- heating furnaces
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- 238000002474 experimental method Methods 0.000 title claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 11
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 21
- 230000007797 corrosion Effects 0.000 description 19
- 238000012360 testing method Methods 0.000 description 17
- 230000003628 erosive effect Effects 0.000 description 15
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000007670 refining Methods 0.000 description 8
- 239000010779 crude oil Substances 0.000 description 7
- 238000011160 research Methods 0.000 description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005504 petroleum refining Methods 0.000 description 3
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The present invention relates to a high-temperature high-flow-velocity washout experimental facility composed of a liquid storing tank, a buffer tank, a filter, a metering pump, heating furnaces, heat exchangers, a sample chamber and a nitrogen cylinder. The bottom of the liquid storing tank connected with the buffer tank is connected to the sample chamber through a liquid discharging valve, the filter, the metering pump and the multi-level heating furnaces; two sets of heat exchangers are arranged among the heating furnaces. On one hand, an inlet valve and an outlet valve are arranged between the last-level heating furnace and the sample chamber, and on the other hand, a bypass valve is arranged between the last-level heating furnace and the heat exchanger; the heat exchanger connected with the bypass valve is connected to the liquid storing tank after being connected with the other heat exchanger in series; the nitrogen cylinder is connected to the heating furnaces through an air displacing valve. The washout experimental facility can simulate the conditions of high temperature and high flow velocity in an industrial environment, and can be used for the washout experiment for the high-temperature medium of the materials of equipment.
Description
Technical field
The present invention relates to commercial unit high temperature erosion corrosion test, specifically a kind of high-temp high-flow-speed outwash experiment equipment that is used for the industrial manufacture process device.
Background technology
The equipment that runs on fields such as petrochemical complex, medicine, electric power, food industry runs into the high temperature erosion problem through regular meeting.For example, in petroleum refining industry, just exist the high temperature erosion problem of naphthenic acid and sulfide, this problem has perplexed a whole world oil refining nearly century of circle, is not solved yet so far.In China, increase along with petroleum refining industry import middle-eastern crude proportion, and the further degree of depth exploitation in domestic oil field, sulfur content and acid number can raise gradually in the crude oil, as not taking corresponding technical measures and countermeasure, will make China's oil refining industry face more and more severeer equipment corrosion problem.
The equipment corrosion problem in the petroleum refining industry and the on-stream time and the cost of enterprise are closely related.Because the corrosive medium kind complexity in the crude oil, influence factor is numerous, and simultaneously, in oil refining apparatus, the place that high temperature corrosion takes place often also is accompanied by the high flow rate factor.Understand fully the effect in material corrosion of each corrosive medium and influence factor, workload and difficulty all are very big.The high-temperature high-flow rate erosion corrosion that is caused by naphthenic acid in the crude oil and sulfide always is the emphasis of oil refining industry research in the world.At present, the INTERCORR.INTERNATIONAL of the U.S., INC.Just began one's study from 1993 and to seek the integrated approach that crude oil corrosivity is estimated, now obtained the subsidy of 650,000 dollars of 21 energy companies in the whole world, its research contents comprises: the type of naphthenic acid, content; H
2S concentration; Temperature; Flow velocity (0～70m/s) and alloy content (wherein the high temperature erosion of naphthenic acid and sulfide is one of its research contents for 0～24%Cr, factor such as 0～6%Mo).The research institution of some scientific research institutions and manufacturing enterprise had once carried out a large amount of investigation to all kinds of corrosion and protection question in the oil refining environment both at home and abroad, though obtained some data, experience, but major part is according to corrosion or the at the scene hanging test data that get of process units in the time between overhauls(TBO), because any refinery all can not the same or analogous crude oil of long-term refining, so the data of hanging test can't reflect in the crude oil that different factors are to the corrosion proof influence of material in the various corrosive mediums.Then can will influence corrosion proof each factor of material separately or combine and study in the laboratory, so that more scientifically investigate in crude oil and the cut thereof various corrosive mediums in aspect and the corrosion proof mutual relationships of material such as temperature, flow velocity, concentration and material metallurgy factors.Now, except that these lacing film data, also many rotation under quiescent conditions or in autoclave of existing laboratory data got.And rotating conditions also can not really reflect the erosion corrosion behavior of material under the high-temperature high-flow rate condition in static and the autoclave.Therefore designing a cover and can simulate the experimental provision of high-temperature high-flow rate media environment, be not only the demand of high-temperature naphthenic acid and sulfide erosion corrosion in the research oil refining apparatus, also is the demand of the erosion corrosion under the high-temperature high-flow rate condition in other industrial environments of research.
Owing to there is not to carry out the relevant device of high temperature erosion experiment at present, thus people under selecting these high-temperature high-flow rate environment, use equipment and materials the time, can only use normal experiment device (static or low flow velocity) to come selection, or the dependence experience is come selection.Will certainly produce selection consequence improperly like this, can cause the certain economic loss to society, serious also can cause human casualty accident.The simulation that will realize high temperature erosion-corrosion environment in the laboratory is very difficult.And owing in the high temperature erosion-corrosion environment in some production process, have inflammable and explosive medium, the high temperature erosion that therefore will carry out under these environment is particularly difficult.
Summary of the invention
Also do not have to carry out the situation of the device of high-temp high-flow-speed outwash experiment at present at China, the purpose of this invention is to provide a kind of high-temp high-flow-speed outwash experiment equipment that can simulate high-temperature high-flow rate condition in the industrial environment, be used for industrial manufacture process device equipment and materials high-temperature medium erosion test.
Technical scheme of the present invention is: this device comprises fluid reservoir, surge tank, filtrator, volume pump, 5 grades of heating furnaces, heat interchanger, sample chamber, nitrogen cylinder, wherein the top of fluid reservoir links to each other with the top of surge tank, be connected in series successively by valve respectively between the first order of the bottom of fluid reservoir, filtrator, volume pump and 5 grades of heating furnaces, the afterbody of 5 grades of heating furnaces is connected with the sample chamber by terminal valve, be connected to the top of fluid reservoir behind 2 groups of heat interchanger of series connection between the third level of 5 grades of heating furnaces and the fourth stage, 2 groups of heat interchanger series connection; The afterbody of 5 grades of heating furnaces also is connected with heat interchanger by bypass valve, and nitrogen cylinder links to each other by the first order of gas displacement valve with 5 grades of heating furnaces;
Ultimate principle of the present invention is: the experimental liquid that will mix up corrosive medium content is heated to certain temperature, and make it to circulate, to produce needed temperature and flow velocity, sample is placed into the test section with uniform temperature and flow conditions, with of the erosion corrosion of test experimental liquid to material.
The present invention has following advantage:
Because the present invention adopts multistage heating furnace structure, makes its experimental temperature can reach 350 ℃, flow velocity reaches 49m/s, good test effect; The present invention can simulate high-temperature naphthenic acid and the sulfide corrosion in the oil refining environment, can also provide test for correlative study; In addition, cost of the present invention is low, and is simple in structure, is easy to promote.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is containing in the fluid of naphthenic acid erosion between 220 ℃～320 ℃ and static corrosion experimental result picture for the present invention at test A3 steel.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
As shown in Figure 1, the present invention includes fluid reservoir 1, surge tank 2, filtrator 3,4,5 grades of heating furnaces 5 of volume pump, heat interchanger 6, sample chamber 7, nitrogen cylinder 8, wherein the top of fluid reservoir 1 links to each other with the top of surge tank 2, be connected in series successively by valve respectively between the first order of the bottom of fluid reservoir 1, filtrator 3, volume pump 4 and 5 grades of heating furnaces 5, the afterbody of 5 grades of heating furnaces 5 is connected with sample chamber 7 by terminal valve 14, after 6,2 groups of heat interchanger of 2 groups of heat interchanger of series connection, 6 series connection between the third level of 5 grades of heating furnaces 5 and the fourth stage, be connected to the top of fluid reservoir 1; The afterbody of 5 grades of heating furnaces 5 also is connected with heat interchanger 6 by bypass valve 15, and nitrogen cylinder 8 links to each other by the first order of gas displacement valve 12 with 5 grades of heating furnaces 5.
Described fluid reservoir 1 outside is equipped with a watt formula well heater 16; Described 5 grades of heating furnaces 5 are for being connected in series between tubular heater and the heat interchanger 6; The present invention adopts high temperature metering pump 4, and pipeline connects by flange, and 5 grades of heating furnaces 5 are installed, and selects four temperature controlling points by thermopair 10, and alternative four is decorated tensimeter 11 and is used to detect the variation of diverse location pressure.
The course of work of the present invention is as follows:
7 place to feel better and wash away sample in the sample chamber, and place to be fond of tranquility on 7 export pipelines of sample chamber and soak sample, have closed sample chamber 7; Close gas displacement valve 12, surge tank atmospheric valve 13 and surge tank 2 bottom valves on fluid reservoir 1 end tapping valve, the pipeline successively; In fluid reservoir 1, add the 20L test(ing) liquid, start volume pump 4, make pipeline be full of experimental liquid, and then in fluid reservoir 1, add the 10L test(ing) liquid, cover fluid reservoir 1 flange then; In pipeline, inject N from gas displacement valve 12
2, and guarantee that whole pipelines are unimpeded, when treating that pressure reaches 0.2MPa, close N
2, open surge tank 2 atmospheric valves 13, when treating that system pressure reduces to zero, close surge tank 2 atmospheric valves 13; In pipeline, re-inject N then
2, air in the displacement apparatus, so replace 5 times after, close gas displacement valve 12, close surge tank 2 atmospheric valves 13; Then the liquid in the receiver 1 is preheating to uniform temperature (this temperature is lower than the allowable temperature of volume pump 4), make liquid enter volume pump 4 and arrive 5 grades of heating furnaces 5 then through filter 3, two groups of heat interchanger 6, liquid enters 5 grades of heating furnaces 5 after going out heat interchanger 6 again, continue heating, after going out 5 grades of heating furnaces 5 of afterbody, if fluid temperature does not reach the desired temperature of test, then close the terminal valve 14 that enters sample chamber 7, open the bypass valve 15 that directly enters heat interchanger 6, make liquid get back to receiver 1 through heat interchanger 6, form closed circuit, liquid so circulates and is heated; When temperature reaches the needed temperature of test when treating that liquid goes out 5 grades of heating furnaces 5, go out 5 grades of heating furnace 5 places at liquid and open and enter the terminal valve 14 of sample chamber 7, and close the bypass valve 15 that directly enters heat interchanger 6; Liquid with the spray regime impact specimen, forms high-temperature high-flow rate and washes away environment during through sample chamber 7; This liquid that enters sample chamber 7, behind 7 terminal valves 14 of sample chamber, get back to receiver 1 through heat interchanger 6 again, reach when so allowing liquid after going out 5 grades of heating furnaces 5, enter sample chamber 7 under the condition of uniform temperature and circulate, just can test out liquid erosion corrosion effect to sample under the high-temperature high-flow rate condition; Simultaneously, in sample chamber 7 liquid wash away less than zone (can think the quiet condition of soaking approx) place a sample, but test liquid with the quiet corrosive attack of soaking under the condition of washing away the condition uniform temp to material; During off-test, open earlier the bypass valve 15 that 5 outlets of 5 grades of heating furnaces directly enter heat interchanger 6, close sample chamber 7 terminal valves 14 then, stop heating work simultaneously, treat the liquid cooling after, stop circulation, take out sample, analyze.
As shown in Figure 2, for adopting the present invention containing in the fluid of naphthenic acid erosion between 220 ℃～320 ℃ and static corrosion experimental result at test A3 steel.Wherein: total acid number is 6.0 milligrams of potassium hydroxide/gram, and represents that 49 meter per seconds, time are 10 hours; ■ represents that 0 meter per second, time are 10 hours.
Heating furnace of the present invention also can be the heating arrangement of built-in bar type well heater.
Claims (3)
1. high-temp high-flow-speed outwash experiment equipment, it is characterized in that: this device comprises fluid reservoir (1), surge tank (2), filtrator (3), volume pump (4), 5 grades of heating furnaces (5), heat interchanger (6), sample chamber (7), nitrogen cylinder (8), wherein the top of fluid reservoir (1) links to each other with the top of surge tank (2), the bottom of fluid reservoir (1), filtrator (3), be connected in series successively by valve respectively between the first order of volume pump (4) and 5 grades of heating furnaces (5), the afterbody of 5 grades of heating furnaces (5) is connected with sample chamber (7) by terminal valve (14), series connection 2 groups of heat interchanger (6) between the third level of 5 grades of heating furnaces (5) and the fourth stage are connected to the top of fluid reservoir (1) after 2 groups of heat interchanger (6) series connection; The afterbody of 5 grades of heating furnaces (5) also is connected with heat interchanger (6) by bypass valve (15), and nitrogen cylinder (8) links to each other by the first order of gas displacement valve (12) with 5 grades of heating furnaces (5).
2. according to the described high-temp high-flow-speed outwash experiment equipment of claim 1, it is characterized in that: described fluid reservoir (1) outside is equipped with a watt formula well heater (16).
3. according to the described high-temp high-flow-speed outwash experiment equipment of claim 1, it is characterized in that: described 5 grades of heating furnaces (5) are the heating arrangement of tubular heater or built-in bar type well heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01106059XA CN1176362C (en) | 2001-01-10 | 2001-01-10 | High-temp high-flow-speed outwash experiment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01106059XA CN1176362C (en) | 2001-01-10 | 2001-01-10 | High-temp high-flow-speed outwash experiment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1363835A CN1363835A (en) | 2002-08-14 |
| CN1176362C true CN1176362C (en) | 2004-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB01106059XA Expired - Fee Related CN1176362C (en) | 2001-01-10 | 2001-01-10 | High-temp high-flow-speed outwash experiment equipment |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924549B (en) * | 2005-09-01 | 2010-11-24 | 上海电气电站设备有限公司 | Measuring method for high-pressure heater heat exchange pipe scour-corrosion experiment |
| CN101413860B (en) * | 2008-11-21 | 2011-01-19 | 北京科技大学 | High-temperature high-flow rate erosion experiment device |
| CN101477843B (en) * | 2008-12-30 | 2011-04-20 | 中国科学院金属研究所 | High temperature high pressure water circulation system |
| CN102507420B (en) * | 2011-10-18 | 2013-08-14 | 中国石油化工股份有限公司 | High-temperature high-flow-rate erosion dynamic simulation test tank |
| CN102493767A (en) * | 2011-12-02 | 2012-06-13 | 西南石油大学 | Gas well-drilling erosion experiment method |
| CN107271305B (en) * | 2017-05-27 | 2019-05-28 | 常州大学 | High temperature and pressure injecting type erosion-corrosion experiment device |
| CN108562509B (en) * | 2018-03-08 | 2022-03-22 | 中国核电工程有限公司 | Under-pressure erosion corrosion test device |
| CN109100127B (en) * | 2018-08-13 | 2024-04-02 | 宁波市产品质量监督检验研究院 | High-temperature erosive wear test device and method for gas-liquid-solid multiphase flow of angle type hydraulic control valve |
| CN109342241B (en) * | 2018-10-26 | 2021-01-15 | 太原理工大学 | High-temperature high-speed gas jet multifunctional erosion test device |
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2001
- 2001-01-10 CN CNB01106059XA patent/CN1176362C/en not_active Expired - Fee Related
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| CN1363835A (en) | 2002-08-14 |
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