CN114441428A - Metal material hydrogen sulfide corrosion experiment device - Google Patents
Metal material hydrogen sulfide corrosion experiment device Download PDFInfo
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- CN114441428A CN114441428A CN202210041754.6A CN202210041754A CN114441428A CN 114441428 A CN114441428 A CN 114441428A CN 202210041754 A CN202210041754 A CN 202210041754A CN 114441428 A CN114441428 A CN 114441428A
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- reaction kettle
- hydrogen sulfide
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- kettle
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 55
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 238000005260 corrosion Methods 0.000 title claims abstract description 35
- 238000002474 experimental method Methods 0.000 title claims abstract description 29
- 239000007769 metal material Substances 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 97
- 239000007789 gas Substances 0.000 claims abstract description 39
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 18
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 239000000498 cooling water Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- KAEAMHPPLLJBKF-UHFFFAOYSA-N iron(3+) sulfide Chemical compound [S-2].[S-2].[S-2].[Fe+3].[Fe+3] KAEAMHPPLLJBKF-UHFFFAOYSA-N 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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Classifications
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- 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
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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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)
- Physical Or Chemical Processes And Apparatus (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to a metal material hydrogen sulfide corrosion experiment device, which is provided with a reaction kettle, wherein an annular clapboard which divides an inner cavity of the reaction kettle into an experiment cavity and a reaction cavity is arranged in the reaction kettle; iron sulfide is put into the reaction cavity, dilute sulfuric acid is added through the agent adding pipe, hydrogen sulfide is generated through the reaction of the dilute sulfuric acid and the iron sulfide, the hydrogen sulfide can be generated in a completely closed state, the partial pressure of the hydrogen sulfide in the reaction kettle can be controlled by controlling the amount of the added reagent, carbon dioxide and nitrogen are added through the gas bottle, the corrosion of the hydrogen sulfide and the carbon dioxide to steel can be simulated under the conditions of high temperature and high pressure, the corrosion mechanism of various metal materials under different temperatures, different pressures and different concentrations of the hydrogen sulfide and the carbon dioxide can be researched, the internal corrosion condition and the corrosion rate of a pipeline can be predicted, and the safety and the reliability of an indoor hydrogen sulfide corrosion experiment can be improved.
Description
Technical Field
The invention relates to the technical field of corrosion tests, in particular to a metal material hydrogen sulfide corrosion experimental device.
Background
With a large amount of H2S and CO2The problems of corrosion of metal pipelines in gas field exploitation are receiving more and more attention. H2The presence of S, in addition to causing severe localized corrosion, can also cause Hydrogen Induced Cracking (HIC) and Sulfide Stress Corrosion Cracking (SSCC) of pipes and tubes once the pipe has been exposed to H2S/CO2Failure due to corrosion will cause catastrophic accidents and huge economic losses. Thus, H2S/CO2The corrosion of pipelines in the environment poses a great threat to the safety of oil and gas exploitation.
At present to CO2/H2The corrosion behavior under the coexisting environment of S is mostly researched, however, because of a plurality of influence factors of the corrosion and complex corrosion mechanism, a consistent conclusion is not drawn yet, and a perfect theoretical system is not formed. Meanwhile, since hydrogen sulfide is a highly toxic gas, the general laboratory is prohibited from performing such a test, which is disadvantageous to CO2/H2And (4) the development of a corrosion theory under the coexisting environment of S. In the existing hydrogen sulfide corrosion experiment device structure, generally, an external hydrogen sulfide gas is led into a reaction chamber containing an experiment solution until a hydrogen sulfide saturated solution is formed in the reaction chamber, a wet hydrogen sulfide environment is simulated, so that the experiment result is close to the actual operation environment of a metal material, the experiment solution in a reaction kettle is changed, the concentration of the introduced hydrogen sulfide gas and the temperature in the reaction kettle are controlled, the metal corrosion condition under different external environment conditions is simulated, and the accuracy and the effectiveness of the experiment result are ensured.
However, in the experimental apparatus having this structure, since the hydrogen sulfide gas is introduced from an external gas cylinder through a pipe, there is a risk of leakage of the hydrogen sulfide gas, which causes serious environmental pollution, and it is not easy to control the injection pressure when the partial pressure of the hydrogen sulfide is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a metal material hydrogen sulfide corrosion experimental device which is safe, reliable, free of leakage risk and convenient for controlling gas pressure.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a metal material hydrogen sulfide corrodes experimental apparatus, has reation kettle and the kettle cover of seal installation in reation kettle upper end, reation kettle in be equipped with annular baffle, annular baffle separates reation kettle's inner chamber for experiment chamber and reaction chamber.
The experimental cavity is as follows: and the test sample rack is arranged in the experiment cavity, and a metal hanging piece is hung on the test sample rack through a hanging arm.
The reaction chamber is characterized in that: and the additive pipe is arranged on the side wall of the reaction kettle and can introduce dilute sulfuric acid into the reaction cavity to react with iron sulfide to generate hydrogen sulfide gas.
The bottom surface in the reation kettle of experiment chamber place is equipped with the resistance heater of heating reation kettle internal temperature, and reation kettle pipe connection has the carbon dioxide gas cylinder that can fill into carbon dioxide gas, fills into the nitrogen cylinder of nitrogen gas in to reation kettle.
In order to keep the internal temperature of the reaction kettle consistent with the experimental requirements, a heat-insulating layer is arranged in the reaction kettle, a cooling water jacket is arranged between the heat-insulating layer and the inner wall of the reaction kettle, and a water inlet pipe for introducing cooling water into the cooling water jacket and a water outlet pipe for discharging the cooling water in the cooling water jacket are arranged on the side wall of the reaction kettle.
Preferably, the sample support is provided with three layers of hanging arms, the adjacent upper hanging arms and the adjacent lower hanging arms are perpendicular to each other, and four metal hanging pieces are hung on the hanging arms on each layer.
The bottom of the sample support is provided with a magnetic rotating disk, and the magnetic rotating disk can regulate speed and is used for driving the sample support to rotate so as to enable the metal hanging sheet to be in full contact with gas. The magnetic rotating disk is driven to rotate by external magnetic force, the leakage risk of the dynamic seal of the rotating shaft is avoided, the rotating speed is adjustable, and the tangential speed generated when the metal hanging piece rotates along with the sample support can simulate different gas flow rates.
The reaction kettle is externally provided with an absorption tank which is connected with an inner cavity pipeline of the reaction kettle and is internally provided with alkali liquor, and after the experiment is finished, hydrogen sulfide gas in the reaction kettle is discharged into the absorption tank, absorbs the hydrogen sulfide gas through the alkali liquor and then is discharged into the atmosphere.
In order to facilitate the real-time monitoring of the temperature and pressure change of the gas in the reaction kettle, the upper part of the side wall of the reaction kettle is respectively connected with a thermometer for measuring the temperature in the reaction kettle and a pressure gauge for measuring the pressure in the reaction kettle.
The invention has the beneficial effects that: the invention adopts a static corrosion test mode, directly generates hydrogen sulfide gas by adopting dilute sulfuric acid and ferric sulfide to react in the reaction kettle to carry out a corrosion test on metal materials, can adjust the partial pressure of the hydrogen sulfide by adjusting the content of the added reagent, and can reduce the leakage risk and improve the safety and the reliability of the test because the hydrogen sulfide gas is not introduced into the reaction kettle from an external pipeline.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. the device comprises a reaction kettle, 2 parts of a kettle cover, 3 parts of a blow-off pipe, 4 parts of an annular partition plate, 5 parts of an experimental cavity, 6 parts of a reaction cavity, 7 parts of a sample support, 8 parts of a hanging arm, 9 parts of a metal hanging sheet, 10 parts of a magnetic rotating disk, 11 parts of an additive adding pipe, 12 parts of a carbon dioxide gas cylinder, 13 parts of a nitrogen cylinder, 14 parts of a resistance heater, 15 parts of a heat preservation layer, 16 parts of a cooling water jacket, 17 parts of a water inlet pipe, 18 parts of a water outlet pipe, 19 parts of a thermometer, 20 parts of a pressure gauge and 21 parts of an absorption tank.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in figure 1, a metal material hydrogen sulfide corrodes experimental apparatus has reation kettle 1 and installs the kettle cover 2 in reation kettle 1 upper end, and reation kettle 1's casing inside lining is polytetrafluoroethylene, outside is the metal material, realizes sealed rigid coupling through sealed the pad between kettle cover 2 and reation kettle 1, and reation kettle 1 bottom is equipped with the blow off pipe 3 of discharging experiment waste liquid after the experiment.
The bottom surface of the inner cavity of the reaction kettle 1 is provided with an annular partition plate 4, and the annular partition plate 4 divides the inner cavity of the reaction kettle 1 into an experiment cavity 5 and a reaction cavity 6.
Experiment cavity 5: the test chamber is positioned in the inner ring range of the annular partition plate 4 and used for carrying out corrosion tests on metal materials, a sample support 7 is installed in the test chamber 4, and the outer lining of the sample support 7 is coated by polytetrafluoroethylene; the supporting rod at the center of the sample support 7 is provided with three layers of hanging arms 8 which are horizontally arranged, the upper and lower hanging arms 8 which are adjacent to each other are perpendicular to each other, four metal hanging pieces 9 serving as experimental samples are hung on the hanging arms 8 on each layer, the metal hanging pieces 9 can be designed according to experimental requirements, and the maximum limit is 5cm in length and 3cm in width.
The bottom surface of the reaction kettle 1 positioned at the bottom of the sample support 7 is provided with a magnetic rotating disk 10 capable of driving the sample support 7 to rotate, and the outer surface of the magnetic rotating disk 10 is coated with polytetrafluoroethylene; the magnetic force rotating disc 10 is driven to rotate through external magnetic force, the axial sealing leakage phenomenon caused by the driving of a traditional transmission shaft can be avoided, meanwhile, the rotating speed of the magnetic force rotating disc 10 can be adjusted, the metal hanging piece 9 is made to be in full contact with gas in the rotating process through the rotation of the sample support 7, and the tangential speed of the metal hanging piece 9 can simulate different gas flow rates.
Reaction chamber 6: the additive pipe 11 which is positioned on the outer ring of the annular partition plate 4 and used for generating hydrogen sulfide gas through chemical reaction is arranged on the side wall of the reaction kettle 1, dilute sulfuric acid can be introduced into the reaction cavity 6, and the hydrogen sulfide gas required by the experiment is generated in the inner cavity of the reaction kettle 1 through the reaction of the dilute sulfuric acid and iron sulfide; meanwhile, a carbon dioxide gas bottle 12 capable of filling carbon dioxide gas into the reaction kettle 1 and a nitrogen gas bottle 13 filled with nitrogen gas are connected with the pipeline of the reaction kettle 1, the filled carbon dioxide is used for simulating the carbon dioxide corrosion condition in the pipeline, and the nitrogen gas is used for improving the experiment pressure in the reaction kettle 1.
A resistance heater 14 for heating the internal temperature of the reaction kettle is arranged on the inner bottom surface of the reaction kettle 1 where the experimental cavity 5 is positioned; the heat-insulating layer 15 surrounding the reaction cavity 6 is arranged in the reaction kettle 1, so that the loss of the temperature in the reaction kettle 1 can be reduced; a cooling water jacket 16 is arranged between the heat-insulating layer 15 and the inner wall of the reaction kettle 1, and a water inlet pipe 17 for introducing cooling water into the cooling water jacket 16 and a water outlet pipe 18 for discharging the cooling water in the cooling water jacket 16 are arranged on the side wall of the reaction kettle 1.
The upper part of the side wall of the reaction kettle 1 is respectively connected with a thermometer 19 for measuring the temperature in the reaction kettle 1 and a pressure gauge 20 for measuring the pressure in the reaction kettle 1.
The reaction kettle 1 is externally provided with an absorption tank 21 connected with an inner cavity pipeline of the reaction kettle 1, and the absorption tank 21 is internally provided with alkali liquor.
The experimental process comprises the following steps: firstly, the kettle cover 2 is opened, the processed metal hanging piece 9 is installed on the hanging arm 8 of the sample support 7, then the iron sulfide with the required hydrogen sulfide partial pressure is added into the reaction cavity 6, and the kettle cover 2 is covered. The valves between the nitrogen gas cylinder 13, the absorption tank 21 and the reaction vessel 1 are opened, and nitrogen gas is injected into the reaction vessel 1 to discharge oxygen gas in the reaction vessel 1. And closing the valve after the deoxygenation is finished. And opening a valve at the upper part of the agent adding pipe 11, adding a proper amount of dilute sulfuric acid, closing the valve at the upper part of the agent adding pipe 11, opening a valve at the lower part of the agent adding pipe 11, and closing the valve at the lower part of the agent adding pipe 11 after the dilute sulfuric acid completely flows into the reaction cavity 6.
The dilute sulfuric acid in the reaction cavity 6 and the ferric sulfide are subjected to chemical reaction to form hydrogen sulfide gas, the number of the pressure gauge 20 is observed, after the partial pressure of the hydrogen sulfide in the reaction kettle 1 meets the experimental requirements, a valve of the carbon dioxide gas bottle 12 is opened, the carbon dioxide gas is injected into the reaction kettle 1, and after the partial pressure of the carbon dioxide reaches the required pressure, the valve of the carbon dioxide gas bottle 12 is closed; opening a valve of a nitrogen bottle 13, injecting nitrogen into the reaction kettle 1 to ensure that the pressure in the reaction kettle 1 reaches the pressure required by the experiment, and closing the valve after the pressure reaches the pressure required by the experiment; after the temperature in the reaction vessel 1 was heated to a predetermined temperature by the resistance heater 14, the experiment was started. The magnetic rotary disk 10 drives the sample support 7 to rotate, so that the metal hanging piece 9 is in full contact with carbon dioxide gas and hydrogen sulfide gas in the reaction kettle 1 in the rotating process, the corrosion conditions of the carbon dioxide and the hydrogen sulfide in a metal pipeline are simulated, and the temperature in the reaction kettle 1 is maintained in the range required by the experiment under the combined action of the cooling water jacket 16, the heat preservation layer 15 and the resistance heater 14 in the experiment process.
After the experiment is finished, the resistance heater 14 is closed, the temperature in the reaction kettle 1 is reduced to a lower temperature through the cooling water jacket 16, then a valve on a pipeline of the absorption tank 21 is opened, hydrogen sulfide gas in the reaction kettle 1 is introduced into the absorption tank 21, the hydrogen sulfide reacts with alkali liquor to be absorbed, and the hydrogen sulfide is discharged into the atmosphere after meeting the emission standard.
After the pressure in the reaction kettle 1 is reduced to a certain pressure, opening the nitrogen gas bottle 13, purging the reaction kettle 1 for a certain time, ensuring that the hydrogen sulfide gas in the reaction kettle 1 is completely removed, closing the nitrogen gas bottle 13, adding alkali liquor through the additive pipe 11, neutralizing acid liquor in the reaction cavity 6, discharging waste materials from the drain pipe 3 after neutralization, adding deionized water through the additive pipe 11 again to clean the reaction cavity 6, finally, opening the kettle cover 2, and taking out the metal hanging piece 9 for analysis treatment.
The invention adopts a static corrosion test mode, hydrogen sulfide gas is directly generated in the completely closed reaction kettle 1, the leakage risk is extremely low, and meanwhile, the hydrogen sulfide gas after the experiment is finished is absorbed by alkali liquor in the absorption tank 21 and then is discharged into the atmosphere, thereby improving the safety.
Dilute sulfuric acid and ferric sulfide are adopted to react in the reaction cavity 6 to generate hydrogen sulfide, the partial pressure of the hydrogen sulfide is conveniently adjusted by adjusting the content of the added reagent, the partial pressure of the hydrogen sulfide can be controlled at an extremely low value, and the corrosion test of the low-content hydrogen sulfide is realized.
Magnetic force rotary disk 10 adopts magnetic drive, avoids the sealed problem between conventional motor drive rotary disk and reation kettle 1 for the reaction can be gone on in totally enclosed reation kettle 1, has reduced the leakage risk.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a metal material hydrogen sulfide corrodes experimental apparatus, has reation kettle and the kettle cover of seal installation in reation kettle upper end, characterized by: an annular partition plate is arranged in the reaction kettle and divides an inner cavity of the reaction kettle into an experiment cavity and a reaction cavity;
experiment cavity: the test device is positioned in the inner ring of the annular clapboard and used for corrosion tests of metal materials, a sample support is arranged in the test cavity, and a metal hanging piece is hung on the sample support through a hanging arm;
a reaction chamber: the additive pipe is arranged on the side wall of the reaction kettle and can introduce dilute sulfuric acid into the reaction cavity to react with iron sulfide to generate hydrogen sulfide gas;
the inner bottom surface of the reaction kettle where the experimental cavity is located is provided with a resistance heater for heating the temperature inside the reaction kettle, and the reaction kettle is connected with a carbon dioxide gas bottle capable of filling carbon dioxide gas and a nitrogen bottle capable of filling nitrogen gas into the reaction kettle through pipelines.
2. The metallic material hydrogen sulfide corrosion experimental device of claim 1, wherein: the reaction kettle is internally provided with a heat insulation layer, a cooling water jacket is arranged between the heat insulation layer and the inner wall of the reaction kettle, and a water inlet pipe for introducing cooling water into the cooling water jacket and a drain pipe for discharging the cooling water in the cooling water jacket are arranged on the side wall of the reaction kettle.
3. The metallic material hydrogen sulfide corrosion experimental device of claim 1, wherein: the sample support is provided with three layers of hanging arms, the adjacent upper hanging arms and the adjacent lower hanging arms are mutually vertical, and four metal hanging pieces are hung on the hanging arms on each layer.
4. The metallic material hydrogen sulfide corrosion experimental device of claim 3, wherein: the bottom of the sample support is provided with a magnetic rotating disk capable of driving the sample support to rotate, and the magnetic rotating disk is driven to rotate through external magnetic force.
5. The metallic material hydrogen sulfide corrosion experimental device of claim 1, wherein: the reaction kettle is externally provided with an absorption tank which is connected with the pipeline of the inner cavity of the reaction kettle and is internally provided with alkali liquor.
6. The metallic material hydrogen sulfide corrosion experimental device of claim 1, wherein: the upper part of the side wall of the reaction kettle is respectively connected with a thermometer for measuring the temperature in the reaction kettle and a pressure gauge for measuring the pressure in the reaction kettle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210041754.6A CN114441428A (en) | 2022-01-14 | 2022-01-14 | Metal material hydrogen sulfide corrosion experiment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210041754.6A CN114441428A (en) | 2022-01-14 | 2022-01-14 | Metal material hydrogen sulfide corrosion experiment device |
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