CN212844929U - Test device for simulating corrosion of supercritical carbon dioxide conveying pipeline - Google Patents
Test device for simulating corrosion of supercritical carbon dioxide conveying pipeline Download PDFInfo
- Publication number
- CN212844929U CN212844929U CN202021869825.4U CN202021869825U CN212844929U CN 212844929 U CN212844929 U CN 212844929U CN 202021869825 U CN202021869825 U CN 202021869825U CN 212844929 U CN212844929 U CN 212844929U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- reaction kettle
- gas
- supercritical carbon
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a test device of simulation supercritical carbon dioxide pipeline corruption, include: the device comprises an argon bottle, a carbon dioxide bottle, an impurity gas bottle, a gas mixer, a container and a reaction kettle; the argon bottle is connected with an air inlet pipe at the lower part of the reaction kettle; the carbon dioxide gas cylinder and the impurity gas cylinder are both connected with a gas mixer, the gas mixer is connected with a container filled with deionized water through a pipeline, and a steam evaporator is arranged on the container; the gas outlet pipe of the container is connected with the gas inlet pipe of the reaction kettle; a sample rack for a suspension test is arranged in the reaction kettle, and a heating unit is arranged outside the reaction kettle; the upper part of the reaction kettle is provided with an air outlet pipe. The utility model discloses can the true simulation supercritical carbon dioxide pipeline's operating mode of being on active service to can study impurity gas, steam content to the influence of supercritical carbon dioxide corruption, improve the accuracy and the validity of metal corrosion test evaluation.
Description
Technical Field
The utility model belongs to the technical field of the metal corrosion experiment, in particular to test device of simulation supercritical carbon dioxide pipeline corruption.
Background
In recent years, energy supply and climate change have become key issues that restrict global economic development. In particular, the excessive emission of greenhouse gases causes global warming, and the economic construction and the life of people are seriously influenced. CCUS (short for Carbon capture, atomization and storage) is a mainstream technology for dealing with Carbon emission and greenhouse effect internationally, including Carbon capture, utilization and sequestration. Specifically, the CCUS separates carbon dioxide from industrial or other emissions sources, such as power plants, coal gasification, etc., concentrates, compresses, transports to a specific location, injects into a reservoir for sequestration to achieve long-term separation of the captured carbon dioxide from the atmosphere. According to the estimation of the international energy organization, the CCUS technology is expected to reduce more than 20% of carbon emission on the global scale.
In China, the emission reduction task of greenhouse gases in high-emission industries such as coal chemical industry, steel, cement and the like is heavy, so that the CCUS technology has a very wide application prospect. In addition, in the oil and gas industry, the technical practice of carbon dioxide flooding to improve the recovery ratio is also popularized and applied. Therefore, the CCUS technology has very important significance for coping with climate change and promoting low-carbon development in China for a medium and long time.
Nevertheless, the problem of corrosion of metal pipes by carbon dioxide is not negligible. In particular, the corrosion problem of metal pipelines is endless in the process of conveying and injection-production of supercritical carbon dioxide. In addition, the content of impurities varies depending on the carbon dioxide source, and the influence of impurities on corrosion is complicated. This is a major problem currently affecting the development of the CCUS technology.
By supercritical carbon dioxide, it is meant pure carbon dioxide in a stable single phase at pressures and temperatures exceeding its critical values (7.38 MPa, 31.4 ℃), which has some unique properties, such as density close to that of a liquid, low viscosity, high diffusion coefficient, etc. These unique properties make the corrosion mechanism for metal pipes different from the common carbon dioxide corrosion. Therefore, research on corrosion of supercritical carbon dioxide has received attention from numerous scholars. Subject to the structural and functional limitations of conventional reactors, there are two so-called "supercritical carbon dioxide" environments that are common today: one is to soak the sample in the solution and then introduce carbon dioxide to make it exceed the temperature and pressure of the critical point; another is to suspend the sample above the solution and introduce carbon dioxide to exceed the critical temperature and pressure. The first environment is far from the service environment of the supercritical carbon dioxide conveying pipeline, and the corrosion is relatively serious because the sample is immersed in the solution. The second environment is relatively close to the service environment of the supercritical carbon dioxide conveying pipeline, but has two problems: the problem of carbon dioxide consumption in a sealed environment is solved, and the problem that the water content in the carbon dioxide cannot be effectively and definitely controlled is solved. Therefore, the test rule obtained by the two simulation environments cannot effectively represent the service condition of the supercritical carbon dioxide conveying pipeline, and the large deviation of the test rule can even lead to the invalidation of the test result.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a test device that simulation supercritical carbon dioxide pipeline corrodes, can truly simulate supercritical carbon dioxide pipeline's the environment of being on active service to can realize impurity gas and vapor content's ration and introduce, improve analogue test's pertinence, accuracy and validity.
The utility model adopts the following technical scheme:
a test device for simulating corrosion of a supercritical carbon dioxide conveying pipeline comprises: the device comprises an argon bottle, a carbon dioxide bottle, an impurity gas bottle, a gas mixer, a container and a reaction kettle;
the argon bottle is connected with an air inlet pipe at the lower part of the reaction kettle;
the carbon dioxide gas cylinder and the impurity gas cylinder are both connected with a gas mixer, the gas mixer is connected with a container filled with deionized water through a pipeline, and a steam evaporator is arranged on the container; the gas outlet pipe of the container is connected with the gas inlet pipe of the reaction kettle;
a sample rack for hanging samples is arranged in the reaction kettle, and a heating unit is arranged outside the reaction kettle; the upper part of the reaction kettle is provided with an air outlet pipe.
Preferably, the argon bottle is connected with the reaction kettle through a first pressure reducing valve and a three-way valve.
Preferably, the carbon dioxide gas cylinder and the impurity gas cylinder are respectively connected with the gas mixer through a second reducing valve and a third reducing valve.
Preferably, the steam evaporator comprises a first heater, a first thermocouple and a first temperature controller, the first heater is arranged at the bottom of the container, the first thermocouple is arranged in the container, and the first temperature controller is electrically connected with the first thermocouple.
Preferably, a booster pump is arranged on the air outlet pipe of the container.
Preferably, the gas outlet pipe of the container and the gas inlet pipe of the reaction kettle are connected with a three-way valve, and the gas inlet pipe of the reaction kettle is a heat-insulating pipe.
Preferably, the heating unit comprises a preheating pipe bundle, a second heater, a second thermocouple and a second temperature controller, the preheating pipe bundle is embedded in the inner cavity of the reaction kettle, the sample rack is arranged in the preheating pipe bundle, the second heater is embedded in the outer wall of the reaction kettle, the second thermocouple is arranged in the preheating pipe bundle, and the second thermocouple is electrically connected with the second temperature controller.
Preferably, a control valve and a pressure gauge are arranged on an air outlet pipe of the reaction kettle.
Preferably, the gas outlet pipe of the reaction kettle is sequentially connected with the first-stage absorption solution tank and the second-stage absorption solution tank, and the outlet of the second-stage absorption solution tank is emptied.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model is used for simulating the test device of the corrosion of the supercritical carbon dioxide conveying pipeline, the argon bottle is connected with the reaction kettle through the three-way valve and is used for discharging the air in the reaction kettle before the test; the carbon dioxide gas cylinder and the impurity gas cylinder are prepared into mixed gas through the gas mixer, the mixed gas carries a certain content of water vapor through the vapor evaporator, and the mixed gas is connected with the reaction kettle through the three-way valve, so that the supercritical state of the mixed carbon dioxide gas containing a certain amount of water vapor can be realized; the test sample is vertically hung on the test sample rack, the flow direction of the supercritical carbon dioxide is parallel to the main observation surface of the test sample, and the service working condition of the supercritical carbon dioxide conveying pipeline is completely simulated; the mixed gas is subjected to chemical treatment through two-stage absorption solution after passing through the outlet of the reaction kettle, so that harm to personnel and air is prevented. The utility model discloses simple structure, easily equipment, convenient operation, low in cost can the actual simulation supercritical carbon dioxide pipeline's operating mode of being on active service to can study impurity gas, vapor content, velocity of flow isoparametric to the influence of supercritical carbon dioxide corruption, effectively solve the experimental law of false nature that is introduced because of the test condition deviation at present, improve the accuracy and the validity of the experimental evaluation of metal corrosion.
Furthermore, the carbon dioxide can be mixed with other gases through a gas mixer, and the content of the other gases can be quantitatively controlled.
Furthermore, the water content of the supercritical carbon dioxide can be regulated and controlled by controlling the temperature of the deionized water through the first temperature controller, and the water vapor content of the supercritical carbon dioxide can be accurately calculated.
Furthermore, the flow direction of the supercritical carbon dioxide is parallel to the main observation surface of the sample, so that the service environment of the supercritical carbon dioxide conveying pipeline can be truly simulated.
The utility model also provides a test method for corrosion test divide into three steps: the first step is to use argon to expel the air in the reaction kettle; introducing carbon dioxide or mixed gas formed by carbon dioxide and other gases through a gas mixer into a steam evaporator, controlling the water content in the gas through temperature, pressurizing and conveying the gas carrying certain water vapor into a reaction kettle heated to a target temperature through a gas booster pump, keeping the flow direction parallel to a main observation surface of a sample, enabling the pressure in the reaction kettle to reach a target value through regulating and controlling a control valve at the outlet of the reaction kettle, displaying the pressure through a fourth pressure gauge, and chemically treating the effluent gas through a two-stage absorption solution tank; and thirdly, after the test is finished, repeating the first step, using argon to expel reaction gas in the reaction kettle, closing the heating device, and taking out the sample for other related analysis after the temperature in the reaction kettle is reduced to the room temperature. The utility model discloses an experimental method is through the proportion of control mist, and vapor content, simulates supercritical carbon dioxide corrosion environment effectively, for pipeline corrosion test provides real simulation effect, and the test result is more true effective, improves analogue test's pertinence, accuracy and validity.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of the test device for simulating corrosion of the supercritical carbon dioxide conveying pipeline provided by the utility model.
Wherein: 1. an argon bottle; 2. a carbon dioxide cylinder; 3. an impurity gas cylinder; 4. a first pressure gauge; 5. a second pressure gauge; 6. a third pressure gauge; 7. a first pressure reducing valve; 8. a second pressure reducing valve; 9. a third pressure reducing valve; 10. a gas mixer; 11. a three-way valve; 12. a gas booster pump; 13. a container containing deionized water; 14. a first heater; a first thermocouple; 16. a first temperature controller; 17. a heat preservation pipe; 18. a sample holder; 19. a reaction kettle; 20. a sample; a preheating pipe; 22. a second heater; 23. a second thermocouple; 24. a second temperature controller; 25. a fourth pressure gauge; 26. a control valve; 27. a first-stage absorption solution tank; 28. and a second-stage absorption solution tank.
Detailed Description
In the description of the present invention, it is to be understood that the terms "bottom", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, which are for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The utility model provides a test device of simulation supercritical carbon dioxide pipeline corruption.
Referring to fig. 1, the testing apparatus of the present invention includes an argon gas cylinder 1, a carbon dioxide gas cylinder 2, an impurity gas cylinder 3, a first pressure gauge 4, a second pressure gauge 5, a third pressure gauge 6, a first pressure reducing valve 7, a second pressure reducing valve 8, a third pressure reducing valve 9, a gas blender 10, a three-way valve 11, a gas booster pump 12, a container 13, a first heater 14, a first thermocouple 15, a first temperature controller 16, a heat preservation pipe 17, a sample holder 18, a reaction kettle 19, a sample 20, a preheating pipe 21, a second heater 22, a second thermocouple 23, a second temperature controller 24, a fourth pressure gauge 25, a control valve 26, a first-stage absorption solution tank 27 and a second-stage absorption solution tank 28. The specific requirements and functions of the components are as follows:
the argon bottle 1 sequentially passes through the first pressure reducing valve 7 and the three-way valve 11 to enter the reaction kettle 19, so that air in the reaction kettle 19 is removed, the flow rate of argon is 100mL/min, and the introduction time is 100 min. The air in the autoclave is driven off and vented through control valve 26. The purpose is to remove air in the reaction kettle 19 and eliminate the influence of air media such as oxygen and the like on the corrosion of the supercritical carbon dioxide.
The carbon dioxide gas cylinder 2 and the impurity gas cylinder 3 (selected from SO)2) The gas is mixed by a gas mixer to control SO2The content of (B) is 5%. The gases in the carbon dioxide gas cylinder 2 and the impurity gas cylinder 3 respectively enter the gas mixer 10 through the second pressure reducing valve 8 and the third pressure reducing valve 9 to be prepared into target mixed gas, the target mixed gas is heated into a container 13 containing deionized water at a certain temperature through the first heater 14 to become carbon dioxide mixed gas containing a certain water vapor content, the carbon dioxide mixed gas is pressurized to a certain pressure through the gas booster pump 12, and the carbon dioxide mixed gas enters the reaction kettle 19 through the three-way valve 11 and the heat preservation pipe 17. The gases of the carbon dioxide gas cylinder 2 and the impurity gas cylinder 3 are mixed by the gas mixer, and the method can be used for researching the influence of the impurity gas on the corrosion of the supercritical carbon dioxide.
The CO is2/SO2The temperature of the mixed gas was controlled to 46 ℃ by passing through a steam evaporator composed of a container 13 containing deionized water, a first heater 14, a first thermocouple 15 and a first temperature controller 16, so that the water vapor content was controlled to 10%. A certain amount of water vapor can be carried, and the carrying amount of the water vapor is determined by the temperature of the deionized water.
After the mixed gas passes through the steam evaporator, a heat preservation device (such as a heat preservation sleeve, a heating belt and the like) is arranged on the outer surface of the conveying pipe 17 between the mixed gas and the reaction kettle 19, so that the temperature of the mixed gas is kept consistent with that of the reaction kettle 19, namely 60 ℃, the water vapor carried in the mixed gas is prevented from being condensed due to temperature reduction, and the water vapor content in an actual test is reduced.
After the mixed gas passes through the steam evaporator, the pressure of the mixed gas is reduced, in order to enable the pressure in the reaction kettle 19 to reach more than 8MPa (slightly higher than the critical pressure of carbon dioxide), a booster pump 12 is adopted for boosting, then a control valve 26 for controlling the outlet of the reaction kettle 19 is adjusted, the pressure of the reaction kettle 19 reaches 10MPa, and the pressure is displayed through a fourth pressure gauge 25.
The sample 20 is vertically hung on the sample rack 18 and placed in the reaction kettle 19, the flow direction of the mixed gas is kept parallel to the main observation surface of the sample, and the flow direction of the mixed gas is kept consistent with the flow direction in the supercritical carbon dioxide conveying pipeline, so that the actual working condition can be accurately simulated. The reaction kettle achieves the target temperature through the combined action of the preheating pipe bundle 21, the second heater 22, the second thermocouple 23 and the second temperature controller 24, the pressure in the reaction kettle is regulated to the target pressure through the regulation control valve 26, and the target pressure is displayed on the pressure gauge 25.
After the mixed gas flows out of the reaction kettle 19, in order to prevent the harm of acid gas to human body and atmosphere, a first-stage absorption solution tank 27 and a second-stage absorption solution tank 28 are adopted for continuous two-stage chemical treatment, and absorption solution can be configured according to the characteristics of impurity gas. The mixed gas at the outlet of the reaction kettle 19 enters a first-stage absorption solution tank 27 through a control valve 26, and is discharged after passing through a second-stage absorption solution tank 28. After the mixed gas flows out of the reaction kettle 19, in order to prevent the harm of acid gas to human body and atmosphere, a first-stage absorption solution tank 27 and a second-stage absorption solution tank 28 are adopted for continuous two-stage chemical treatment, the absorption solutions are 10% NaOH solutions, the volume of the absorption solution tank is 50L, and the replacement period is 3 d.
The utility model also provides a test method of the test device of simulation supercritical carbon dioxide pipeline corruption specifically as follows:
s1, adding sufficient deionized water into the container 13, sealing, and heating the deionized water to 46 ℃ by using the first heater 14, the first thermocouple 15 and the first temperature controller 16; the temperature is determined by calculation from the water vapor content and the saturation vapor pressure in the mixed gas.
S2, the three-way valve 11 is adjusted to connect the argon gas bottle 1 to the reaction vessel 19, the first pressure reducing valve 7 is opened, the control valve 26 is opened, and the air in the reaction vessel 19 is discharged with argon gas. The time for introducing argon gas was determined by calculating the flow rate of argon gas and the volume of the reaction vessel (19). For example, when the volume of the reaction vessel is 10L and the flow rate of argon gas introduced is 100mL/min, the time for introducing argon gas to remove oxygen is at least 100 min.
S3, regulating and controlling the second temperature controller 24 to ensure that the internal temperature of the reaction kettle 19 is 60 ℃, and regulating and controlling the heat preservation pipe 17 to maintain the same temperature as the temperature in the reaction kettle 19, namely 60 ℃.
S4, adjusting the three-way valve 11 to enable the steam evaporator to be communicated with the reaction kettle 19, opening the second pressure reducing valve 8 and the third pressure reducing valve 9, and controlling SO2Is 5%, the temperature of the first temperature controller 16 is adjusted to 46 ℃, obtaining a water vapor content of 10%.
S5, starting the gas booster pump 12, boosting the mixed gas carrying 10% of water vapor to be more than 10MPa, and regulating and controlling the control valve 26 at the outlet of the reaction kettle 19 to enable the pressure in the reaction kettle 19 to reach 10MPa, which is displayed by the fourth pressure gauge 25.
S6, carrying out two-stage chemical treatment on the gas flowing out of the outlet of the reaction kettle 19 through the first-stage absorption solution tank 27 and the second-stage absorption solution tank 28 to avoid harm to personnel and air, wherein the two-stage absorption solutions are 10% NaOH solutions, the volumes of the absorption solution tanks are 50L, and the replacement period is 3 d.
And S7, repeating the step S2 after the test is finished, discharging carbon dioxide gas in the reaction kettle 19, closing the second temperature controller 24, and taking out the sample for relevant analysis such as corrosion rate calculation, corrosion product analysis and the like after the temperature in the reaction kettle 19 is reduced to room temperature.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. A test device for simulating corrosion of a supercritical carbon dioxide conveying pipeline is characterized by comprising: an argon bottle (1), a carbon dioxide bottle (2), an impurity gas bottle (3), a gas mixer (10), a container (13) and a reaction kettle (19);
the argon bottle (1) is connected with an air inlet pipe at the lower part of the reaction kettle (19);
the carbon dioxide gas cylinder (2) and the impurity gas cylinder (3) are both connected with a gas mixer (10), the gas mixer (10) is connected with a container (13) filled with deionized water through a pipeline, and a steam evaporator is arranged on the container (13); the air outlet pipe of the container (13) is connected with the air inlet pipe of the reaction kettle (19);
a sample rack (18) for hanging a sample (20) is arranged in the reaction kettle (19), and a heating unit is arranged outside the reaction kettle; the upper part of the reaction kettle (19) is provided with an air outlet pipe.
2. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1, characterized in that the argon bottle (1) is connected with the reaction kettle (19) through a first pressure reducing valve (7) and a three-way valve (11).
3. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1, wherein the carbon dioxide gas cylinder (2) and the impurity gas cylinder (3) are respectively connected with the gas mixer (10) through a second reducing valve (8) and a third reducing valve (9).
4. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1 or 3, characterized in that the steam evaporator comprises a first heater (14), a first thermocouple (15) and a first temperature controller (16), the first heater (14) is arranged at the bottom of the container (13), the first thermocouple (15) is arranged in the container (13), and the first temperature controller (16) is electrically connected with the first thermocouple (15).
5. A test device for simulating corrosion of supercritical carbon dioxide conveying pipeline according to claim 1 or 3, characterized in that the gas outlet pipe of the container (13) is provided with a booster pump (12).
6. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1, wherein the gas outlet pipe of the container (13) is connected with the gas inlet pipe of the reaction kettle (19) through a three-way valve (11), and the gas inlet pipe of the reaction kettle (19) is a heat preservation pipe (17).
7. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1 or 6, wherein the heating unit comprises a preheating pipe bundle (21), a second heater (22), a second thermocouple (23) and a second temperature controller (24), the preheating pipe bundle (21) is embedded in an inner cavity of the reaction kettle (19), the sample rack (18) is arranged in the preheating pipe bundle (21), the second heater (22) is embedded in an outer wall of the reaction kettle (19), the second thermocouple (23) is arranged in the preheating pipe bundle (21), and the second thermocouple (23) is electrically connected with the second temperature controller (24).
8. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1, wherein a control valve (26) and a pressure gauge (25) are arranged on an air outlet pipe of the reaction kettle (19).
9. The test device for simulating the corrosion of the supercritical carbon dioxide conveying pipeline according to claim 1 or 8, wherein the gas outlet pipe of the reaction kettle (19) is sequentially connected with a first-stage absorption solution tank (27) and a second-stage absorption solution tank (28), and the outlet of the second-stage absorption solution tank (28) is emptied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869825.4U CN212844929U (en) | 2020-08-31 | 2020-08-31 | Test device for simulating corrosion of supercritical carbon dioxide conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869825.4U CN212844929U (en) | 2020-08-31 | 2020-08-31 | Test device for simulating corrosion of supercritical carbon dioxide conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844929U true CN212844929U (en) | 2021-03-30 |
Family
ID=75142642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021869825.4U Active CN212844929U (en) | 2020-08-31 | 2020-08-31 | Test device for simulating corrosion of supercritical carbon dioxide conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212844929U (en) |
-
2020
- 2020-08-31 CN CN202021869825.4U patent/CN212844929U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111982795A (en) | Test device and test method for simulating corrosion of supercritical carbon dioxide conveying pipeline | |
| CN109932272B (en) | CO (carbon monoxide) 2 Displacement experiment system and displacement experiment method | |
| CN108072751B (en) | Fracturing fluid and reservoir interaction simulation experiment system and experiment method | |
| CN113504171B (en) | Device and method for measuring reservoir salt precipitation injury and evaluating salt dissolving agent effect | |
| CN205483902U (en) | Analytic simulating measurement setup of replacement and absorption | |
| CN104897521B (en) | A kind of anhydrous fracturing fluid flow conductivity test system of carbon dioxide | |
| CN109100269B (en) | System and method for rapidly determining solubility and diffusion coefficient of gas in liquid | |
| CN103913279A (en) | Method and device for testing leakproofness of oil cooler by mixing helium and air | |
| CN105004801A (en) | Loop heat pipe ammonia working medium purity analysis device | |
| CN106092823A (en) | A kind of continuous assessment high-temperature, high pressure fluid viscosity and the experimental provision of shear stability | |
| CN212844929U (en) | Test device for simulating corrosion of supercritical carbon dioxide conveying pipeline | |
| CN104880385A (en) | System and method for testing rheological properties of carbon dioxide anhydrous fracturing fluid | |
| CN208013210U (en) | A kind of fracturing fluid and reservoir interact experimental system for simulating | |
| CN203745326U (en) | Testing device used for measuring gas-solid chemical reaction rate through volumetric method | |
| Acosta et al. | Dew and bubble point measurements for carbon dioxide-propane mixtures | |
| CN205670275U (en) | A kind of fixing quantity water oxygen Gas content and the device of flow | |
| CN111855377A (en) | Supercritical CO2Test device and method for producing methane by extracting coal coupling biological reaction | |
| CN116818997A (en) | Device and method for testing performance of scale inhibitor | |
| CN103623699A (en) | Method for nitrogen displacement in denitration and deamination zones | |
| CN103852396A (en) | Testing device and testing method for measuring gas and solid chemical reaction rate by volumetric method | |
| CN203798515U (en) | Equipment for testing sealing of oil cooler by using mixing of helium and air | |
| CN105928867B (en) | A kind of high temperature and pressure corrosion inhibition evaluating apparatus and its evaluation method | |
| CN205844130U (en) | A kind of continuous assessment high-temperature, high pressure fluid viscosity and the experimental provision of shear stability | |
| CN213955679U (en) | Test device for measuring performance of supercritical carbon dioxide heat exchanger and material | |
| CN220393741U (en) | Microalgae oxygen production monitoring and utilizing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |