CN206684013U - Supercritical carbon dioxide corrosion experimental device - Google Patents
Supercritical carbon dioxide corrosion experimental device Download PDFInfo
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- CN206684013U CN206684013U CN201720420479.3U CN201720420479U CN206684013U CN 206684013 U CN206684013 U CN 206684013U CN 201720420479 U CN201720420479 U CN 201720420479U CN 206684013 U CN206684013 U CN 206684013U
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- carbon dioxide
- corrosion
- supercritical carbon
- experimental device
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 62
- 238000005260 corrosion Methods 0.000 title claims abstract description 58
- 230000007797 corrosion Effects 0.000 title claims abstract description 57
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 54
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract 2
- 238000009833 condensation Methods 0.000 abstract 2
- 229960004424 carbon dioxide Drugs 0.000 description 36
- 238000002474 experimental method Methods 0.000 description 10
- 239000000956 alloy Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 210000000720 eyelash Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model provides a supercritical carbon dioxide corrodes experimental apparatus, includes carbon dioxide air supply, preheater and corrosion reaction cauldron, and the export of carbon dioxide air supply is linked together through booster pump and preheater entry, and the preheater export is linked together with the corrosion reaction cauldron that is used for placing the sample, and the exit linkage of corrosion reaction cauldron has cooling system. The utility model discloses a set up carbon dioxide air supply, booster pump, corrosion reaction cauldron andand the cooling system is used for pressurizing the carbon dioxide gas source by the booster pump and then entering the corrosion reaction kettle, and the condensation system is arranged behind the corrosion reaction kettle, so that the condensation rate of the gas is improved, and the stability and the safety of the system are improved. The device has simple structure, and can simply and effectively realize the test of the material in the high-temperature supercritical carbon dioxide (S-CO) under the laboratory condition2) Corrosion behavior under conditions.
Description
Technical field
It the utility model is related to a kind of material corrosion experimental provision, and in particular to a kind of supercritical carbon dioxide corrosion experiment
Device.
Background technology
Supercritical carbon dioxide (S-CO2) Brayton cycle is with carbon dioxide (critical pressure in a supercritical state
7.38MPa, 30.98 DEG C of critical-temperature) it is working medium, energy conversion is realized using Brayton cycle principle.It is extensive compared to current
The Steam Power Circulation used, S-CO2Energy conversion efficiency under Brayton cycle high temperature (being generally greater than 400 DEG C) is higher, and
The volume of turbine system and cooling device just corresponds to 1/10th of vapour system corresponding device volume；Compared to conventional gas
Brayton cycle, the characteristics of its compression process parameter is located at working medium Near The Critical Point, cause compression power consumption to significantly reduce, circulation effect
Rate significantly improves.Supercritical carbon dioxide (S-CO2) Brayton cycle is because the technical advantage of its own is in new combustion engine, forth generation
There is potential application in nuclear power, thermoelectricity and solar power generation unit.Relative to system design, S-CO2Brayton cycle system
Critical component in system, such as turbine, heat exchanger, pipeline, alloy corrosion behavior will be decision systems safety and component life
One of key factor.
It is generally believed that under lower temperature (<400 DEG C) dry, pure S-CO2Fluid is stable, the metal portion with contact
The speed that part (pressure vessel, pipeline, power part etc.) reacts is extremely low.And in CO2Catch and store, CO2Transport, surpass and face
Boundary CO2In Brayton Cycle system, doping vapor, sulfurous gas (1mg/L magnitudes), air etc. are inevitable, and
Cause corrosion phenomenon Producing reason.At higher temperatures, such as supercritical CO2CO in Brayton cycle fired power generating unit2Temperature
650 DEG C/25MPa or higher is can reach with pressure, even if with ultrapure CO2As flow media, the critical component in system is still
Certain corrosion phenomenon occurs.The ambient parameter such as extent of corrosion and alloy material, temperature and pressure has close relationship.
Therefore, by supercritical carbon dioxide (S-CO2) Brayton cycle is necessary to alloy when being applied to generating set
Supercritical carbon dioxide corrosion behavior investigated, the corrosion mechanism in alloy under arms environment is dissected.But examine
Power plants generating electricity efficiency is considered, it is difficult to carry out actual measurement experiment in power plant, therefore, it is necessary to which pot can effectively be simulated by developing one kind
The laboratory instrumentation of stove service condition.Relevant alloy is in S-CO at present2Corrosion behavior research report in environment is relatively
Few, corrosion experimental device used does not possess condition of high voltage, and its experiment parameter is far below supercritical carbon dioxide circulation thermal power generation
Aims of systems parameter (750 DEG C, 30MPa), and the experiment demand of HTHP Dynamic Corrosion can not be simulated.Closed accordingly, it is considered to arrive
The resistance to supercritical carbon dioxide corrosivity of gold is to researching and developing supercritical carbon dioxide (S-CO2) Brayton cycle generating set it is important
Property, design a kind of supercritical carbon dioxide HTHP corrosion resistance laboratory instrumentation of effectively simulation boiler operatiopn condition and compel
In the eyebrows and eyelashes, solve supercritical carbon dioxide etching problem, provided fundamental basis for high parameter supercritical carbon dioxide generation technology
And new approaches.
Utility model content
The defects of to overcome prior art, the purpose of this utility model are, for supercritical carbon dioxide (S-CO2) cloth
Thunder circulation, there is provided one kind can be simple and effective to realize test material in HTHP overcritical two in laboratory conditions
Carbonoxide (S-CO2) under the conditions of corrosion behavior dynamic circulation supercritical carbon dioxide corrosion experimental device.
To achieve the above object, the technical solution of the utility model is：
A kind of supercritical carbon dioxide corrosion experimental device, including carbon dioxide air source, preheating furnace and for placing sample
Corrosion reacting kettle, the outlet of carbon dioxide air source is connected through booster pump with preheating furnace entrance, and preheating outlet of still is anti-with corrosion
Kettle entrance is answered to be connected, the outlet of corrosion reacting kettle is connected with cooling system.
The utility model, which further improves, to be, the booster pump is connected with air compressor.
The utility model, which further improves, to be, quantitative injection container is provided between the booster pump and preheating furnace.
The utility model, which further improves, to be, the outlet of the booster pump is through high pressure storage tank and quantitatively injection container phase
Connection.
The utility model, which further improves, to be, the quantitatively injection container is connected with high pressure constant-flux pump.
The utility model, which further improves, to be, the corrosion reacting kettle is arranged in kettle heating furnace.
The utility model, which further improves, to be, quick opening valve is provided with the top and bottom of the corrosion reacting kettle, rotten
Kettle temperature thermocouple is additionally provided with erosion reactor.
The utility model, which further improves, to be, the temperature control for controlling preheating furnace temperature is provided with the preheating furnace
Thermocouple.
The utility model, which further improves, to be, the cooling system includes condenser and gas-liquid separator, and high pressure is anti-
The outlet of kettle is answered to be connected by the road, after counterbalance valve and condenser with gas-liquid separator.
The utility model, which further improves, to be, the outlet of the gas-liquid separator by the road, valve and drier
Entrance is connected, and the outlet of drier is connected with carbon dioxide air source.
Compared with prior art, the beneficial effects of the utility model：
The utility model is by setting carbon dioxide air source, booster pump, corrosion reacting kettle and cooling system, by titanium dioxide
Carbon source of the gas enters corrosion reacting kettle after booster pump is pressurized, and condenser system is set after corrosion reacting kettle, it is possible to increase gas
Condensing rate, increase the stability and security of system.The present apparatus is simple in construction, can simply have in laboratory conditions
Effect realizes test material in high-temperature supercritical carbon dioxide (S-CO2) under the conditions of corrosion behavior.
Further, the utility model is by the way that cooling system is connected with carbon dioxide air source, formation media flow loop,
Realize the dynamic circulation of carbon dioxide, can real simulation boiler operatiopn condition, effectively save cost.
Further, container is quantitatively injected by setting, quantitative injection container can be required through according to experiment to preheating
A certain amount of carbon dioxide of injection in stove.
Further, by setting kettle heating furnace, carbon dioxide can be heated again and reached needed for corrosion experiment
Temperature.
Further, the temperature in reactor is controlled in real time by setting temperature-control heat couple in autoclave.
Brief description of the drawings
Fig. 1 is apparatus structure schematic diagram of the present utility model.
Wherein：1st, carbon dioxide air source；2nd, drier；3rd, air compressor；4th, booster pump；5th, high pressure storage tank；6th, it is quantitative
Inject container；7th, high pressure constant-flux pump；8th, preheating furnace；9th, corrosion reacting kettle；10th, condenser；11st, gas-liquid separator；12nd, back pressure
Valve；13rd, temperature thermocouple；14th, temperature-control heat couple；15th, valve.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, the utility model includes carbon dioxide plenum system, preheating furnace 8 and the corruption being sequentially connected with by pipeline
Reactor 9 is lost, carbon dioxide comes from 99.9998% carbon dioxide air source 1 and passes through 2 dried titanium dioxide of drier
Carbon；Carbon dioxide plenum system includes carbon dioxide air source 1, and carbon dioxide air source 1 exports to be connected through valve with booster pump 4, increases
Press pump 4 is connected with air compressor 3；Source of the gas enters high pressure storage tank 5 after the supercharging of booster pump 4；The outlet of high pressure storage tank 5 is with determining
The amount injection entrance of container 6 is connected, and quantitatively injects the outlet of container 6 and is connected with the entrance of preheating furnace 8, and the outlet of preheating furnace 8 and corrosion are anti-
The entrance of kettle 9 is answered to be connected；Quantitatively injection container 6 is connected with high pressure constant-flux pump 7, and this quantitatively injects container 6 and imported and exported and sets respectively
Valve is put to control source of the gas flow velocity；The source of the gas that proper flow rates are obtained by control enters preheating furnace 8, and use is provided with preheating furnace 8
In the temperature-control heat couple 14 of control preheating furnace temperature, the outlet of preheating furnace 8 is through pipeline with being arranged in kettle heating furnace and being used for
The autoclave 9 for placing the parts to be tested is connected, and kettle temperature thermocouple 13 is provided with corrosion reacting kettle 9, and corrode
The top and bottom of reactor 9 are provided with quick opening valve, the outlet of autoclave 9 by the road, after counterbalance valve 12 and condenser 10
It is connected with gas-liquid separator 11；Gas-liquid separator 11 outlet by the road, valve 15 be connected with the entrance of drier 2, process
Source of the gas after gas-liquid separator 11 separates enters in drier 2 by the road, and the outlet of drier 2 is connected with carbon dioxide air source 1
It is logical, realize that gas circulation utilizes.
The course of work of the present utility model：Preparation before plant running includes checking source of the gas, sample installation, emptying system
System, booster pump 4 is set and quantitatively injects 6 several steps of container.First check for source of the gas, it is ensured that carbon dioxide air source is sufficient, does not leak
Gas, then sample is installed.Sample installation, which refers to, to be fixed on sample on sample stand and is positioned in corrosion reacting kettle 9.
Emptying system, which refers to, closes counterbalance valve 12 and valve 15, and the valve opened on corrosion reacting kettle 9 is passed through experiment institute to corrosion reacting kettle 9
Source of the gas is needed, discharges other fluids.Booster pump 4 is set and quantitatively injects container 6, includes the setting of pressure and flow.
Normal condition：With booster pump 4 and quantitatively injection container 6 is starting point, pressure of the supercritical carbon dioxide in booster pump 4
The lower flow forward of effect, it is pre- into steam after quantitative injection container 6 and the regime flow of high pressure constant-flux pump 7 and compensator or trimmer pressure fluctuation
Hot stove 8 is heated, and reaches specified steam preheating temperature, about 350-650 DEG C；Then fluid is heated by pipeline into kettle
Stove, heated again by kettle heating furnace, reach temperature needed for experiment, and autoclave 9 is entered by bottom of furnace body.It is anti-to go out high pressure
The source of the gas of kettle 9 is answered to be cooled down after decompression by condenser 10 first by counterbalance valve 12, fluid is condensed, liquefied.It is condensed
Fluid enters gas-liquid separator 11 by pipeline, then imports drier 2 by pipeline, is recycled so as to realize.
At the end of experiment, gas source valve is first shut off, booster pump 4 is closed and quantitatively injects container 6, be then shut off preheating furnace
8th, corrosion reacting kettle 9, corrosion reacting kettle 9 are slowly cooled to room temperature with stove, are opened quick opening valve and are taken out sample.Normal experiment is general
Experimenter is not needed to intervene, system is by automatic running.
Claims (10)
1. a kind of supercritical carbon dioxide corrosion experimental device, it is characterised in that including carbon dioxide air source (1), preheating furnace (8)
With the corrosion reacting kettle (9) for placing sample, the outlet of carbon dioxide air source (1) is through booster pump (4) and preheating furnace (8) entrance
It is connected, preheating furnace (8) outlet is connected with corrosion reacting kettle (9) entrance, and the outlet of corrosion reacting kettle (9) is connected with cooling system
System.
A kind of 2. supercritical carbon dioxide corrosion experimental device according to claim 1, it is characterised in that the booster pump
(4) it is connected with air compressor (3).
A kind of 3. supercritical carbon dioxide corrosion experimental device according to claim 1, it is characterised in that the booster pump
(4) quantitative injection container (6) is provided between preheating furnace (8).
A kind of 4. supercritical carbon dioxide corrosion experimental device according to claim 3, it is characterised in that the booster pump
(4) outlet is connected through high pressure storage tank (5) with quantitatively injecting container (6).
5. a kind of supercritical carbon dioxide corrosion experimental device according to claim 3 or 4, it is characterised in that described fixed
Amount injection container (6) is connected with high pressure constant-flux pump (7).
6. a kind of supercritical carbon dioxide corrosion experimental device according to claim 1, it is characterised in that the corrosion is anti-
Kettle (9) is answered to be arranged in kettle heating furnace.
7. a kind of supercritical carbon dioxide corrosion experimental device according to claim 1, it is characterised in that the corrosion is anti-
Answer and be provided with quick opening valve at the top and bottom of kettle (9), kettle temperature thermocouple (13) is additionally provided with corrosion reacting kettle (9).
A kind of 8. supercritical carbon dioxide corrosion experimental device according to claim 1, it is characterised in that the preheating furnace
(8) temperature-control heat couple (14) for controlling preheating furnace (8) temperature is installed on.
A kind of 9. supercritical carbon dioxide corrosion experimental device according to claim 1, it is characterised in that the cooling system
System includes condenser (10) and gas-liquid separator (11), the outlet of autoclave (9) by the road, counterbalance valve (12) and condenser
(10) it is connected afterwards with gas-liquid separator (11).
A kind of 10. supercritical carbon dioxide corrosion experimental device according to claim 9, it is characterised in that the gas-liquid
The outlet of separator (11) by the road, valve (15) be connected with the entrance of drier (2), the outlet of drier (2) and dioxy
Change carbon source of the gas (1) to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420479.3U CN206684013U (en) | 2017-04-20 | 2017-04-20 | Supercritical carbon dioxide corrosion experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420479.3U CN206684013U (en) | 2017-04-20 | 2017-04-20 | Supercritical carbon dioxide corrosion experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206684013U true CN206684013U (en) | 2017-11-28 |
Family
ID=60404119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720420479.3U Active CN206684013U (en) | 2017-04-20 | 2017-04-20 | Supercritical carbon dioxide corrosion experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206684013U (en) |
-
2017
- 2017-04-20 CN CN201720420479.3U patent/CN206684013U/en active Active
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