CN207992012U - A kind of supercritical carbon dioxide corrosion testing apparatus - Google Patents
A kind of supercritical carbon dioxide corrosion testing apparatus Download PDFInfo
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- CN207992012U CN207992012U CN201820269438.3U CN201820269438U CN207992012U CN 207992012 U CN207992012 U CN 207992012U CN 201820269438 U CN201820269438 U CN 201820269438U CN 207992012 U CN207992012 U CN 207992012U
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Abstract
The utility model discloses a kind of supercritical carbon dioxide corrosion testing apparatus, are related to experimental study field of the metal material in supercritical carbon dioxide environment.The experimental rig is made of driving gas component, CO2 gas supply assemblies, supercritical CO 2 supercharging stabipack, autoclave and heating component, gas deflation assembly, gas purging component, gas composition analysis component.The device can realize corrosion test of material under the conditions of dynamic supercritical carbon dioxide, and can monitor reaction product and its content in real time, and test result is reliable, and test during system can automatic running, without guard, it is easy to use.
Description
Technical field
The utility model belongs to experimental study field of the metal material in supercritical gas environment, and in particular to Yi Zhongchao
Critical carbon dioxide corrosion testing apparatus.
Background technology
In field of thermal power, for energy saving and environmental protection, it is desirable that generating efficiency is continuously improved, in recent years,
Supercritical carbon dioxide (SC-CO2) Brayton cycle coal-fired power generator set become research hotspot, need to material in SC-CO2Ring
Corrosive nature in border is evaluated, it is therefore desirable to which exploitation can simulate the experimental rig of practical high temperature and pressure military service operating mode, should
Experimental rig requires medium temperature and pressure to be at least up to 700 DEG C and 35MPa respectively.
In supercritical gas Research on Environmental Test field, prior art essentially discloses supercritical water oxidation experiment dress
It sets, including 104568722 A of patent application document CN《A kind of corrosion testing apparatus under supercriticality》, patent CN
103543096 A《A kind of dynamic high temperature high-pressure oxidation experimental provision》, patent application document 200810011845.5《One kind is super
The method and apparatus that long-time oxidized corrosion experiment is carried out in critical》, 102519863 A of patent CN《A kind of supercritical water steaming
Vapour oxidation test device》Deng.However supercritical water and supercritical carbon dioxide property and it is different (critical point of water is 374 DEG C,
22.1MPa is in a liquid state at normal temperatures and pressures, and the critical point of carbon dioxide is only then 31 DEG C, 7.4MPa, is in gas in normal temperature and pressure
State), cause corrosion test equipment general.And it is directed to supercritical carbon dioxide corrosion testing apparatus at present, report is relatively
Few, patent application document 201710262493.X reports a kind of supercritical carbon dioxide corrosion testing apparatus, but the device is deposited
In following drawback：First, it is not provided with purging component, the air in the preceding system of experiment can not be discharged；Secondly, it is not provided with gas
Constituent analysis component, it is difficult to which the purity of atmosphere in guarantee test can not observe the purity of body in real time, it is ensured that gaseous impurity content is full
Foot requires；Third is not provided with the device of over-temp and over-pressure alarm and feedback control, can not safe operation steady in a long-term.
It is therefore desirable to develop a kind of corrosion for capableing of safe operation steady in a long-term under the conditions of supercritical carbon dioxide
Testing equipment.
Utility model content
The purpose of this utility model is to provide a kind of supercritical carbon dioxide corrosion testing apparatus.
In order to achieve the above objectives, what the utility model adopts the following technical solution to realize：
A kind of supercritical carbon dioxide corrosion testing apparatus, including driving gas component, CO2Gas supply assembly, supercritical CO2
It is pressurized stabipack, autoclave and heating component, gas deflation assembly, gas purging component and gas composition analysis component；Its
In,
It includes air compressor machine, filter A, pressure regulator valve, pressure gauge A, safety valve A and driving switch to drive gas component；
CO2Gas supply assembly includes gas cylinder, pressure gauge B and filter B；
Supercritical CO2It includes gas boosting pump, filter C, high-pressure buffering pot, pressure reducing valve, pressure gauge to be pressurized stabipack
C, sensor, safety valve B, shut-off valve A, flowmeter and heating and thermal insulation band；
Autoclave and heating component include air inlet side high pressure flange, heating furnace, high pressure boiler tube, thermal insulator, sample frame,
Outlet side high pressure flange and thermocouple；
Gas deflation assembly includes shut-off valve B, counterbalance valve and check valve A；
It includes shutoff valve C, relief valve and check valve B that gas, which purges component,；
Gas composition analysis component includes gas composition analyzer and shut-off valve D；
Wherein, air compressor machine passes sequentially through filter A, pressure regulator valve, pressure gauge A, safety valve A, driving switch and gas boosting
The driving gas access of pump is connected；Gas cylinder, pressure gauge B, filter B pass sequentially through the air source inlet phase that pipeline is pumped with gas boosting
Even；
Gas boosting pump high pressure gas outlet by pipeline and be arranged on the pipeline filter C, high-pressure buffering pot,
The pressurized gas inlet phase of pressure reducing valve, pressure gauge C, sensor, safety valve B, shut-off valve A and flowmeter and air inlet side high pressure flange
Even；
High pressure boiler tube is arranged in heating furnace, and both sides are respectively set air inlet side high pressure flange and go out gas side high pressure flange, high
It presses and thermal insulator is set in boiler tube, sample frame is placed at center, and thermocouple is stretched by going out gas side high pressure flange in the middle part of high pressure boiler tube；
Go out gas side high pressure flange by pipeline to be connected with exhaust processor entrance, shut-off valve B, the back of the body are set gradually on pipeline
Pressure valve and check valve A form gas deflation assembly；
Shutoff valve C is connected by pipeline and threeway one end with gas boosting pump intake side, the other end and air inlet side high-pressure process
Blue entrance is connected, and relief valve and check valve B are connected by threeway with gas side high pressure flange export pipeline is gone out, check valve B outlets
Side is connected with exhaust processor, forms gas and purges component；
Gas composition analyzer is mounted on exhaust processor inlet tube road, while in filter B and gas booster pump
Between pipeline on gas all the way drawn by threeway be connected to gas composition analyzer, setting shut-off valve D on pipeline.
The utility model, which further improves, to be, the high pressure gas of gas boosting pump exports to air inlet side high pressure flange
Heating and thermal insulation band is set on the pipeline between pressurized gas inlet.
The utility model, which further improves, to be, the signal of sensor is connected to controller, and controller is used for basis and sets
Level pressure force value calculates control signal, is output on gas boosting pump, when pressure is beyond setting pressure gas boosting is pumped
It is stopped.
The utility model, which further improves, to be, the signal of thermocouple is connected to controller, for controlling signal output
Onto gas boosting pump and heating furnace, when observed temperature exceeds set temperature so that gas boosting pumps and heating furnace stops work
Make.
The utility model, which further improves, to be, the high pressure boiler tube is made of high-temperature alloy material.
The utility model, which further improves, to be, alkaline solution is housed in exhaust processor.
Compared with prior art, in the utility model drive gas component be gas boosting pump provide required driving force,
CO2Gas supply assembly provides clean gas, supercritical CO for gas boosting pump2It is autoclave and heating to be pressurized stabipack
Component provides the supercritical carbon dioxide gas of pressure and stability of flow, and gas deflation assembly is absorbed and handled to reaction gas,
Gas purges the air in component removing system, and gas composition analysis component can analyze the carbon dioxide gas before and after air source and reaction
Body ingredient obtains impurity content information in gas, while providing data basis to analyze and studying reaction product.Specifically,
The beneficial effects of the utility model are：
1, utility model device purges the air that component can be in discharge system by gas, while utilizing gas componant point
Analyzer compares air source and exit gas ingredient, can observe the purity of gas in real time, it is ensured that gaseous impurity content is met the requirements.
2, the utility model setting can analyze the carbon dioxide gas ingredient before and after air source and reaction, to analyze and studying material
Expect that corrosion mechanism provides data basis.
3, the device of the alarm of the utility model setting over-temp and over-pressure and feedback control, ensure that equipment is transported safely steadily in the long term
Row.
4, the utility model dioxide bottle does not install pressure reducer, reduces the pressure ratio of gas boosting pump, while in gas
Air accumulator is arranged in body booster pump outlet pipeline, reduces equipment loss.
5, the device of the utility model can be pumped by gas boosting, pressure reducing valve and counterbalance valve return to adjust high-temperature high pressure water
Pressure in road 0 between 40MPa, temperature can by Heating Furnace Control in room temperature to 800 DEG C, different examinations can be met
Test requirement.
6, the gas of the utility model discharge first passes through exhaust processor and is then exhausted from, safe and environment-friendly.
Description of the drawings
Fig. 1 is a kind of supercritical carbon dioxide corrosion testing apparatus schematic diagram described in utility model.
In figure：1- air compressor machines；2- filters A；3- pressure regulator valves；4- pressure gauges A；5- safety valves A；6- driving switch；7- gas
Bottle；8- pressure gauges B；9- filter Bs；10- gas boostings pump；11- filters C；12- high-pressure buffering pots；13- pressure reducing valves；14- is pressed
Power table C；15- sensors；16- safety valves B；17- shut-off valves A；18- flowmeters；19- heating and thermal insulation bands；20- air inlet side high-pressure processes
It is blue；21- heating furnaces；22- high pressure boiler tubes；23- thermal insulators；24- sample frames；25- goes out gas side high pressure flange；26- thermocouples；27-
Shut-off valve B；28- counterbalance valves；29- check valves A；30- exhaust processors；31- shutoff valve Cs；32- relief valves；33- check valves B；
34- controllers；35- gas composition analyzers；36- shut-off valves D.
Specific implementation mode
The utility model is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of supercritical carbon dioxide corrosion testing apparatus of the utility model, including driving gas component,
CO2Gas supply assembly, supercritical CO2Be pressurized stabipack, autoclave and heating component, gas deflation assembly, gas purging component and
Gas composition analysis component；Wherein, driving gas component includes air compressor machine 1, filter A2, pressure regulator valve 3, pressure gauge A4, safety
Valve A5 and driving switch 6；CO2Gas supply assembly includes gas cylinder 7, pressure gauge B8 and filter B 9；Supercritical CO2It is pressurized stabipack
Including gas boosting pump 10, filter C11, high-pressure buffering pot 12, pressure reducing valve 13, pressure gauge C14, sensor 15, safety valve
B16, shut-off valve A17, flowmeter 18 and heating and thermal insulation band 19；Autoclave and heating component include air inlet side high pressure flange
20, heating furnace 21, high pressure boiler tube 22, thermal insulator 23, sample frame 24, outlet side high pressure flange 25 and thermocouple 26；Gas deflation assembly
Including shut-off valve B27, counterbalance valve 28, check valve A29 and exhaust processor 30；It includes shutoff valve C 31, pressure release that gas, which purges component,
Valve 32 and check valve B33；Gas composition analysis component includes gas composition analyzer 35 and shut-off valve D36；Wherein, air compressor machine 1
Pass sequentially through the driving gas of filter A2, pressure regulator valve 3, pressure gauge A4, safety valve A5, driving switch 6 and gas booster pump 10
Entrance is connected；Gas cylinder 7, pressure gauge B8, filter B 9 pass sequentially through pipeline and are connected with the air source inlet of gas boosting pump 10；Gas
The high pressure gas outlet of booster pump 10 passes through pipeline and the filter C11, high-pressure buffering pot 12, the pressure reducing valve that are arranged on the pipeline
13, the high pressure gas of pressure gauge C14, sensor 15, safety valve B16, shut-off valve A17 and flowmeter 18 and air inlet side high pressure flange 20
Body entrance is connected；High pressure boiler tube 22 is arranged in heating furnace 21, and both sides are respectively set air inlet side high pressure flange 20 and go out gas side height
Pressure flange 25, high pressure boiler tube 22 is interior to be arranged thermal insulator 23, and sample frame 24 is placed at center, and thermocouple 26 is by going out gas side high pressure flange
25 stretch into 22 middle part of high pressure boiler tube；Go out gas side high pressure flange 25 by pipeline to be connected with 30 entrance of exhaust processor, on pipeline
Shut-off valve B27, counterbalance valve 28, check valve A29 are set gradually, gas deflation assembly is formed；Shutoff valve C 31 passes through pipeline and threeway one end
10 entrance sides are pumped with gas boosting to be connected, the other end is connected with air inlet side high pressure flange entrance, and relief valve 32 and check valve B33 are logical
It crosses threeway and is connected with gas side high pressure flange export pipeline is gone out, check valve B33 goes out gas side and is connected with exhaust processor 30, forms gas
Body purges component；Gas composition analyzer 35 is mounted on 30 inlet tube of exhaust processor road, while gentle in filter B 9
Gas all the way is drawn by threeway on pipeline between body booster pump 10 and is connected to gas composition analyzer 35, is arranged on pipeline and cuts
Only valve D36.
Wherein, the high pressure gas of gas boosting pump 10 exports between the pressurized gas inlet of air inlet side high pressure flange 20
Heating and thermal insulation band 19 is set on pipeline.
The signal of sensor 15 is connected to controller 34, and controller 34 calculates control signal according to setup pressure value, defeated
Go out onto gas boosting pump 10, so that gas boosting pump is stopped when pressure is beyond setting pressure.The signal of thermocouple 26 connects
It is connected to controller 34, control signal is output on gas boosting pump 10 and heating furnace 21, when observed temperature exceeds set temperature,
Gas boosting pump 10 and heating furnace 21 is set to be stopped.
When carrying out supercritical carbon dioxide corrosion test, it is first turned on shutoff valve C 31 and relief valve 32 is blown by gas
It washes component and is passed through CO to system2So that the air discharge in system, the gas componant of observation gas composition analyzer 35 to discharge
Gas blow line is closed after reaching pre-provisioning request；By pressure regulator valve 3, safety valve A 5, pressure reducing valve 13, safety valve B 16 and the back of the body
Pressure valve 28 is set as preset pressure；The heating furnace 21 for opening PLC technology heats up, and temperature in circuit, which is risen to experiment, is expected
Temperature parameter；Pipeline is warming up to 40~70 DEG C with heating and thermal insulation band 19；Open air compressor machine 1 and driving switch 6；Open gas cylinder 1
Valve and gas booster pump 10；So that pressure reaches experiment expecting pressure parameter in circuit, start to test.
The utility model is ingenious in design, is compared with the prior art, which can realize material in the overcritical titanium dioxide of dynamic
Corrosion test under the conditions of carbon, pressure, temperature are reliable and stable, and can monitor reaction product and its content, test result in real time
Reliably, and test during system can automatic running, without guard, it is easy to use.
Claims (6)
1. a kind of supercritical carbon dioxide corrosion testing apparatus, which is characterized in that including driving gas component, CO2Gas supply assembly,
Supercritical CO2It is pressurized stabipack, autoclave and heating component, gas deflation assembly, gas purging component and gas componant point
Analyse component；Wherein,
Driving gas component includes air compressor machine (1), filter A (2), pressure regulator valve (3), pressure gauge A (4), safety valve A (5) and drives
Dynamic switch (6)；
CO2Gas supply assembly includes gas cylinder (7), pressure gauge B (8) and filter B (9)；
Supercritical CO2Supercharging stabipack includes gas boosting pump (10), filter C (11), high-pressure buffering pot (12), pressure reducing valve
(13), pressure gauge C (14), sensor (15), safety valve B (16), shut-off valve A (17) and flowmeter (18)；
Autoclave and heating component include air inlet side high pressure flange (20), heating furnace (21), high pressure boiler tube (22), thermal insulator
(23), sample frame (24), outlet side high pressure flange (25) and thermocouple (26)；
Gas deflation assembly includes shut-off valve B (27), counterbalance valve (28), check valve A (29) and exhaust processor (30)；
It includes shutoff valve C (31), relief valve (32) and check valve B (33) that gas, which purges component,；
Gas composition analysis component includes gas composition analyzer (35) and shut-off valve D (36)；
Wherein, air compressor machine (1) passes sequentially through filter A (2), pressure regulator valve (3), pressure gauge A (4), safety valve A (5), driving switch
(6) it is connected with the driving gas access of gas booster pump (10)；Gas cylinder (7), pressure gauge B (8), filter B (9) pass sequentially through pipe
The air source inlet that road pumps (10) with gas boosting is connected；
The high pressure gas outlet of gas boosting pump (10) is slow by pipeline and the filter C (11) being arranged on the pipeline, high pressure
Rush tank (12), pressure reducing valve (13), pressure gauge C (14), sensor (15), safety valve B (16), shut-off valve A (17) and flowmeter
(18) it is connected with the pressurized gas inlet of air inlet side high pressure flange (20)；
In heating furnace (21), both sides are respectively set air inlet side high pressure flange (20) and go out gas side high pressure for high pressure boiler tube (22) setting
Sample frame (24) is placed at flange (25), the interior setting thermal insulator (23) of high pressure boiler tube (22), center, and thermocouple (26) is by going out gas side
High pressure flange (25) stretches into the middle part of high pressure boiler tube (22)；
Go out gas side high pressure flange (25) by pipeline to be connected with exhaust processor (30) entrance, shut-off valve is set gradually on pipeline
B (27), counterbalance valve (28) and check valve A (29) form gas deflation assembly；
Shutoff valve C (31) pumps (10) entrance side with gas boosting by pipeline and threeway one end and is connected, and the other end is high with air inlet side
Pressure flange entrance is connected, and relief valve (32) and check valve B (33) are connected by threeway with gas side high pressure flange export pipeline is gone out,
Check valve B (33) goes out gas side and is connected with exhaust processor (30), forms gas and purges component；
Gas composition analyzer (35) is mounted on exhaust processor (30) inlet tube road, while in filter B (9) and gas
Gas all the way is drawn by threeway on pipeline between booster pump (10) and is connected to gas composition analyzer (35), is arranged on pipeline
Shut-off valve D (36).
2. a kind of supercritical carbon dioxide corrosion testing apparatus according to claim 1, which is characterized in that gas boosting pumps
(10) heating and thermal insulation is set on the pipeline that high pressure gas exports between the pressurized gas inlet of air inlet side high pressure flange (20)
Band (19).
3. a kind of supercritical carbon dioxide corrosion testing apparatus according to claim 1, which is characterized in that sensor (15)
Signal be connected to controller (34), controller (34) is used to calculate control signal according to setup pressure value, is output to gas
On booster pump (10), when pressure is beyond setting pressure gas boosting pump is stopped.
4. a kind of supercritical carbon dioxide corrosion testing apparatus according to claim 1, which is characterized in that thermocouple (26)
Signal be connected to controller (34), be output to gas boosting pump (10) and heating furnace (21) for controlling signal, work as actual measurement
When temperature exceeds set temperature so that gas boosting pumps (10) and heating furnace (21) is stopped.
5. a kind of supercritical carbon dioxide corrosion testing apparatus according to claim 1, which is characterized in that the pressure furnace
Pipe (22) is made of high-temperature alloy material.
6. a kind of supercritical carbon dioxide corrosion testing apparatus according to claim 1, which is characterized in that exhaust processor
(30) alkaline solution is housed in.
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| CN201820269438.3U CN207992012U (en) | 2018-02-24 | 2018-02-24 | A kind of supercritical carbon dioxide corrosion testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820269438.3U CN207992012U (en) | 2018-02-24 | 2018-02-24 | A kind of supercritical carbon dioxide corrosion testing apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132211A (en) * | 2018-02-24 | 2018-06-08 | 华能国际电力股份有限公司 | A kind of supercritical carbon dioxide corrosion testing apparatus and application method |
| CN109470603A (en) * | 2018-11-05 | 2019-03-15 | 浙江大学 | The experimental system visualizing and its method of measurement & characterization contact angle under a kind of high temperature and high pressure environment |
| CN109932490A (en) * | 2019-03-20 | 2019-06-25 | 西安航空学院 | A kind of gas pretreatment device and gas-detecting device with back suction function |
-
2018
- 2018-02-24 CN CN201820269438.3U patent/CN207992012U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132211A (en) * | 2018-02-24 | 2018-06-08 | 华能国际电力股份有限公司 | A kind of supercritical carbon dioxide corrosion testing apparatus and application method |
| CN109470603A (en) * | 2018-11-05 | 2019-03-15 | 浙江大学 | The experimental system visualizing and its method of measurement & characterization contact angle under a kind of high temperature and high pressure environment |
| CN109470603B (en) * | 2018-11-05 | 2020-10-30 | 浙江大学 | Visual experiment system and method for measuring and representing contact angle in high-temperature and high-pressure environment |
| CN109932490A (en) * | 2019-03-20 | 2019-06-25 | 西安航空学院 | A kind of gas pretreatment device and gas-detecting device with back suction function |
| CN109932490B (en) * | 2019-03-20 | 2024-02-13 | 西安航空学院 | Gas pretreatment device with back-pumping function and gas detection device |
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