Corrosion simulation apparatus and system

Abstract

A corrosion simulation apparatus and a system. The corrosion simulation apparatus comprises a housing (1) and a rotating part (2). The housing (1) is provided with a first port (11), the first port (11) being used to introduce an absorbent into the housing (1). The rotating part (2) comprises a rotating shaft (21) and multiple mounting plates (22), at least a portion of the rotating shaft (21) extending into the housing (1) and being rotatable relative to the housing (1), and the rotating speed of the rotating shaft (21) being adjustable. The multiple mounting plates (22) are disposed in the housing (1) and are separately connected to the rotating shaft (21), and the multiple mounting plates (22) are disposed at intervals in the circumferential direction of the housing (1). The mounting plates (22) are suitable for mounting samples (100). The corrosion simulation apparatus can simulate a dynamic corrosion environment, improving the accuracy of an experimental result.

Description

Corrosion Simulation Device and System

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 2024106858202, filed on May 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of corrosion environment simulation technology, specifically to a corrosion simulation device and system. Background Technology

[0004] Absorbents have a certain corrosive effect on carbon capture systems. Different absorbents have different corrosive effects on carbon capture systems. In related technologies, the plate test is often used to monitor the corrosion of different materials. However, the plate test is a static test, while the corrosion of metal equipment in fluid is more severe than the corrosion in static conditions, which leads to inaccurate results from the plate test. Summary of the Invention

[0005] The embodiments of this disclosure provide a corrosion simulation device that can simulate dynamic corrosion environments and improve the accuracy of experimental results.

[0006] The corrosion simulation apparatus of this disclosure includes: a housing having a first opening for introducing an absorbent into the housing; a rotating component including a rotating shaft and a plurality of mounting plates, at least a portion of the rotating shaft extending into the housing and rotatable relative to the housing, the rotating shaft having an adjustable rotational speed, the plurality of mounting plates located within the housing and respectively connected to the rotating shaft, and the plurality of mounting plates being spaced apart in the circumferential direction of the housing, the mounting plates being adapted to mount samples.

[0007] The corrosion simulation device of this disclosure can simulate dynamic corrosion environments and improve the accuracy of experimental results.

[0008] In some embodiments, the plurality of mounting plates are divided into multiple mounting plate groups, which are arranged at intervals in the extending direction of the housing. Each mounting plate group includes at least two mounting plates, and the two mounting plates are evenly spaced apart in the circumferential direction of the housing.

[0009] In some embodiments, a plurality of mounting plates are staggered on the projection plane of the rotating shaft in the axial direction.

[0010] In some embodiments, the mounting plate extends radially along the housing, with one end of the mounting plate in its width direction higher than the other end in its width direction.

[0011] In some embodiments, the corrosion simulation apparatus further includes a first distributor located within the housing and arranged adjacent to the first port, the first distributor being used to dispense absorbent entering the housing.

[0012] In some embodiments, the corrosion simulation device further includes a second distributor, the housing also having a second port, the second port and the first port being arranged at intervals in the extending direction of the housing, and the second distributor being arranged adjacent to the second port.

[0013] In some embodiments, the corrosion simulation device further includes a first valve, one end of which is connected to the first port, and the other end of which is adapted to be connected to an absorbent. The first valve is used to control the flow rate of the absorbent entering the housing.

[0014] In some embodiments, the corrosion simulation device further includes a second valve, one end of which is connected to the second port and the other end of which is connected to a gas source. The second valve is used to control the gas flow rate entering the housing.

[0015] In some embodiments, the corrosion simulation device further includes an adjustment element connected to the housing, the adjustment element being used to adjust the temperature and pressure within the housing.

[0016] This disclosure also proposes a corrosion simulation system.

[0017] The corrosion simulation system of this disclosure includes a heat exchanger and two corrosion simulation devices, which are connected to each other via the heat exchanger. The corrosion simulation devices are the corrosion simulation devices described in the above embodiments.

[0018] The corrosion simulation system of this disclosure can improve the accuracy of experimental results. Attached Figure Description

[0019] Figure 1 is a schematic diagram of a corrosion simulation apparatus according to an embodiment of the present disclosure.

[0020] Figure 2 is a schematic diagram of the mounting plate according to an embodiment of this disclosure.

[0021] Figure 3 is a schematic diagram of a mounting plate according to another embodiment of this disclosure.

[0022] Figure 4 is a schematic diagram of the corrosion simulation system according to an embodiment of the present disclosure.

[0023] Reference numerals: Sample 100, Housing 1, First port 11, Second port 12, Third port 13, Rotating component 2, Rotating shaft 21, Mounting plate 22, Motor 23, First distributor 3, Second distributor 4, First valve 5, Second valve 6, Controller 7, Sampling port 8, Adjusting component 9. Detailed Implementation

[0024] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0025] The corrosion simulation apparatus of this disclosure includes a housing 1 and a rotating component 2. The housing 1 has a first opening 11 for introducing an absorbent into the housing 1. The rotating component 2 includes a rotating shaft 21 and a plurality of mounting plates 22. At least a portion of the rotating shaft 21 extends into the housing 1 and is rotatable relative to the housing 1. The rotational speed of the rotating shaft 21 is adjustable. The plurality of mounting plates 22 are located inside the housing 1 and are respectively connected to the rotating shaft 21. The plurality of mounting plates 22 are spaced apart in the circumferential direction of the housing 1. The mounting plates 22 are adapted to mount a sample 100.

[0026] It should be noted that the corrosion simulation device can simulate the environment of the absorption tower alone, or the corrosion simulation device can simulate the environment of the regeneration tower alone, or multiple corrosion simulation devices can be set up to simulate the environments of the absorption tower and the regeneration tower at the same time. In the embodiments of this disclosure, the corrosion simulation device simulates the environment of the absorption tower.

[0027] Specifically, as shown in Figure 1, the first port 11 is located above the housing 1, through which absorbent can be introduced into the housing 1. The rotating component 2 also includes a motor 23. The upper end of the rotating shaft 21 extends into the housing 1, and the lower end of the rotating shaft 21 is located outside the housing 1. The lower end of the rotating shaft 21 is connected to the motor 23, and the rotation of the motor 23 drives the rotating shaft 21 to rotate. Multiple mounting plates 22 are installed on the upper end of the rotating shaft 21, and the multiple mounting plates 22 are arranged at intervals to ensure that multiple samples 100 mounted on the multiple mounting plates 22 can all come into contact with the absorbent.

[0028] For example, the mounting plate 22 is provided with a slot, into which the sample 100 can be inserted to prevent the sample 100 from falling off when the mounting plate 22 is rotated, thereby improving the connection stability between the sample 100 and the mounting plate 22.

[0029] This embodiment also includes a controller 7, which is connected to a motor 23. The controller 7 controls the motor 23 to adjust the rotation speed of the shaft 21, which can simulate the corrosion pattern of the sample 100 at different rotation speeds. For example, the rotation speed of the shaft 21 can be adjusted according to the flow rate of the absorbent or according to the type of absorbent. This embodiment does not limit the adjustment conditions of the shaft 21 or the rotation speed of the shaft 21, and the actual operation shall prevail.

[0030] Compared to the static plate experiment used in related technologies, this embodiment of the present disclosure sets up multiple mounting plates 22 that can rotate with the rotating shaft 21 inside the housing 1. By mounting the sample 100 on the mounting plate 22 and introducing the absorbent into the housing 1 from above, the mounting plate 22 and the rotating shaft 21 play a stirring role during rotation, so that the sample 100 can fully contact the absorbent and form relative motion, thereby simulating the dynamic corrosion simulation environment and improving the accuracy of the experimental results.

[0031] Furthermore, in this embodiment of the present disclosure, by setting multiple mounting plates 22, samples 100 of different materials can be mounted on each mounting plate 22, thereby realizing the corrosion patterns of multiple samples 100 of different materials under the same absorbent environment. Moreover, by introducing different absorbents into the shell 1, the corrosion patterns of samples 100 of different materials under different absorbents can be obtained.

[0032] In some embodiments, the plurality of mounting plates 22 are divided into a plurality of groups of mounting plates 22, which are spaced apart in the extending direction of the housing 1 (the up and down direction as shown in FIG1). Each group of mounting plates 22 includes at least two mounting plates 22, and the two mounting plates 22 are evenly spaced apart in the circumferential direction of the housing 1.

[0033] Specifically, as shown in Figure 1, each set of mounting plates 22 has the same number of mounting plates 22. In this embodiment of the present disclosure, by setting multiple sets of mounting plates 22, samples 100 of different materials can be set at different heights of the shell 1, making full use of the space inside the shell 1 and improving experimental efficiency.

[0034] For example, the number of multiple mounting plates (22 sets) can be two, three, or four sets.

[0035] For example, the distance between the mounting plate 22 and the inner wall of the housing 1 is less than 1 / 3 of the radius of the housing 1.

[0036] In some embodiments, multiple mounting plates 22 are staggered on the projection surface of the rotating shaft 21 in the axial direction.

[0037] Specifically, as shown in Figure 2, when there are two groups of mounting plates 22, and each group of mounting plates 22 includes two mounting plates 22, the number of mounting plates 22 is four. The four mounting plates 22 are divided into two groups of mounting plates 22, and the two mounting plates 22 in the upper group of mounting plates 22 are arranged alternately with the two mounting plates 22 in the lower group of mounting plates 22.

[0038] As shown in Figure 3, when there are three groups of mounting plates 22, and each group of mounting plates 22 includes two mounting plates 22, the number of mounting plates 22 is six. The six mounting plates 22 are divided into three groups of mounting plates 22, with the two mounting plates 22 in the upper group, the two mounting plates 22 in the middle group, and the two mounting plates 22 in the lower group arranged alternately.

[0039] This embodiment of the invention arranges the mounting plates 22 in multiple sets of mounting plates 22 in an alternating manner, so that the sample 100 on the mounting plate 22 in each set of mounting plates 22 can come into contact with the absorbent. This avoids the mounting plate 22 in the upper set of mounting plates 22 blocking the mounting plate 22 in the lower set of mounting plates 22, ensuring that the sample 100 is in full contact with the absorbent and improving the accuracy of the experimental results.

[0040] This disclosure does not limit the specific number of mounting plate groups 22, nor does it limit the number of mounting plates 22 included in each group of mounting plates 22. As long as the sample 100 on the mounting plate 22 can be kept in full contact with the absorbent and the rotation balance of the rotating shaft 21 can be maintained, it falls within the protection scope of this disclosure.

[0041] In some embodiments, the mounting plate 22 extends radially along the housing 1, with one end of the mounting plate 22 in the width direction higher than the other end in the width direction.

[0042] In this embodiment, the mounting plate 22 is arranged at an angle so that the upper surface of the mounting plate 22 can contact more absorbent. The sample 100 is mounted on the upper end of the mounting plate 22 so that the sample 100 is in full contact with the absorbent.

[0043] In some embodiments, the corrosion simulation device further includes a first distributor 3, which is located inside the housing 1 and arranged adjacent to the first port 11, and is used to distribute the absorbent entering the housing 1.

[0044] Specifically, as shown in Figure 1, the first distributor 3 is located above the rotating shaft 21 and the mounting plate 22, and below the first port 11. The first distributor 3 is connected to the inner wall of the housing 1. The absorbent entering the housing 1 can be distributed through the first distributor 3 to improve the uniformity of the absorbent distribution in the housing 1.

[0045] In some embodiments, the corrosion simulation device further includes a second distributor 4, and the housing 1 also has a second port 12, the second port 12 and the first port 11 being arranged at intervals in the extending direction of the housing 1, and the second distributor 4 being arranged adjacent to the second port 12.

[0046] Specifically, as shown in Figure 1, for ease of description, this embodiment of the present disclosure uses a simulated absorption tower as an example. The second distributor 4 and the first distributor 3 are arranged at intervals in the vertical direction. The second distributor 4 is located below the lowest mounting plate 22 and above the second port 12. The second port 12 is used to introduce gas into the shell 1. The second distributor 4 is used to distribute the gas introduced into the shell 1 through the second port 12 so that the gas can flow upward evenly.

[0047] For example, there are multiple second ports 12, which are evenly spaced around the circumference of the housing 1. In this embodiment, there are two second ports 12, which are symmetrically arranged. The arrangement of two second ports 12 can improve the uniformity of the gas entering the housing 1.

[0048] The inclined arrangement of the mounting plate 22 results in different contacts between the upper and lower surfaces of the mounting plate 22 and the medium. For example, the inclined arrangement of the mounting plate 22 in this embodiment allows the upper surface of the mounting plate 22 to contact more absorbent and the lower surface of the mounting plate 22 to contact more gas, thus achieving different simulated environments.

[0049] The shell 1 is also provided with a third port 13, which is located at the bottom of the shell 1. The third port 13 is used to discharge the absorbent inside the shell 1. The discharged absorbent can be pumped back to the first port 11. In this embodiment, the gas containing different component contents enters the shell 1 from the second port 12 at the bottom of the shell 1, and flows from bottom to top after passing through the second distributor 4. The absorbent enters the shell 1 through the first port 11 and flows downward evenly under the action of the first distributor 3. The absorbent comes into contact with the gas. The rotating shaft 21 drives the mounting plate 22 to rotate so that the sample 100 can fully contact the absorbent and the gas, improving the accuracy of the experiment.

[0050] In this embodiment, the rotation of the shaft 21 drives the rotation of the mounting plate 22 to fully stir the mixture, making the gas and absorbent more evenly distributed, thus acting as a filler. It also ensures that the chemical composition of the solution on the surface of the sample 100 is the same as that of the overall solution. Furthermore, by adjusting the flow rate of the absorbent and the gas, the expected field application can be reflected, thereby improving the accuracy of the experiment.

[0051] In some embodiments, the corrosion simulation device further includes a first valve 5, one end of which is connected to a first port 11, and the other end of which is adapted to be connected to an absorbent. The first valve 5 is used to control the flow rate of the absorbent entering the housing 1.

[0052] Specifically, as shown in Figure 1, the controller 7 is connected to the first valve 5 to adjust the opening of the first valve 5, thereby adjusting the flow rate of the absorbent. By adjusting the flow rate of the absorbent, corrosion tests of the absorbent on the sample 100 can be performed at different flow rates, thus improving the accuracy of the experiment.

[0053] In some embodiments, the corrosion simulation device further includes a second valve 6, one end of which is connected to the second port 12 and the other end of which is connected to a gas source. The second valve 6 is used to control the gas flow rate entering the housing 1.

[0054] Specifically, as shown in Figure 1, the controller 7 is connected to the second valve 6 to adjust the opening of the second valve 6, thereby adjusting the gas flow rate. By adjusting the gas flow rate, a gas simulation environment with different flow rates can be achieved, improving the accuracy of the experiment.

[0055] In some embodiments, the corrosion simulation device further includes a sampling port 8, through which real-time sampling can be performed to analyze changes in the composition and content of the solvent in the absorbent, and to adjust the flow rate of the absorbent in a timely manner.

[0056] In some embodiments, the corrosion simulation device further includes an adjustment element 9 connected to the housing 1, which is used to adjust the temperature and pressure inside the housing 1.

[0057] Specifically, the regulating component 9 includes a temperature controller and a pressure regulator. The temperature controller is connected to the housing 1 and is used to adjust the temperature inside the housing 1. The pressure regulator is connected to the housing 1 and is used to adjust the pressure inside the housing 1. The controller 7 is connected to both the temperature controller and the pressure regulator. By controlling the temperature controller and the pressure regulator through the controller 7, the different temperatures and pressures inside the housing 1 can be adjusted, thereby simulating the corrosive environment of the absorbent and gas on the sample 100 under different temperatures and pressures, and improving the accuracy of the experiment.

[0058] For example, the corrosion simulation device in this embodiment of the present disclosure has a temperature of 30-125°C, a pressure of 0.18-0.25 MPa (A), and a gas flow rate of less than or equal to 1.0 Nm. 3 The flow rate of the absorbent is 2-10 L / h, and the rotation speed is 200-1000 rpm.

[0059] The corrosion simulation device of this embodiment places samples 100 of different materials on multiple sets of mounting plates 22. The mounting plates 22 are connected to the rotating shaft 21. The motor 23 rotates to drive the rotating shaft 21 to rotate the mounting plates 22 and the samples 100 on the mounting plates 22. The absorbent flows uniformly downward from the top of the housing 1 through the first port 11 and the first distributor 3, so that the absorbent and the samples 100 of different materials form relative motion, which can be used to examine the effect of tangential force on wear corrosion.

[0060] In this embodiment, the controller 7 can control the rotation speed of the motor 23 to adjust the rotation speed of the shaft 21, the controller 7 can control the first valve 5 to adjust the flow rate of the absorbent, the controller 7 can control the second valve 6 to adjust the flow rate of the gas, and the controller 7 can control the temperature controller and pressure regulator to adjust the temperature and pressure inside the shell 1. This allows the corrosion simulation device to adjust the different rotation speeds of the shaft 21, the different absorbents introduced into the shell 1 and their different rotation speeds, the different gases introduced into the shell 1 and their different flow rates, and the different temperatures and pressures inside the shell 1. This realistically simulates various environments of the absorption tower and, based on the corrosion effects of samples 100 of different materials under various environments, obtains the corrosion laws, influencing factors, and synergistic effect mechanisms of different chemical absorbents on metal materials.

[0061] The corrosion simulation system of this disclosure includes a heat exchanger and two corrosion simulation devices connected to each other via the heat exchanger. The corrosion simulation devices are the same as those described in the above embodiment.

[0062] Specifically, as shown in Figure 4, the two corrosion simulation devices include a first corrosion simulation device and a second corrosion simulation device. The first corrosion simulation device simulates an absorption tower, and the second corrosion simulation device simulates a regeneration tower. The absorbent circulates between the absorption tower and the regeneration tower. The absorbent enters the absorption tower through the first port 11 to absorb carbon dioxide, and then exits from the bottom of the absorption tower. After heat exchange, it is transferred to the regeneration tower for desorption. The desorbed absorbent is transferred to the first port 11 of the absorption tower after heat exchange, thus realizing the circulation of the absorbent between the absorption tower and the regeneration tower. The controller 7 controls the flow rate of the absorbent, the flow rate of the gas, the different temperatures and pressures of the absorption tower and the regeneration tower, and the different rotation speeds of the rotating shaft 21, respectively, to simulate different environments and facilitate the selection of suitable materials for the absorption tower and the regeneration tower.

[0063] In some embodiments, the second corrosion simulation device may be provided with an outlet corresponding to the regeneration tower in order to discharge the desorbed carbon dioxide.

[0064] Understandably, the first port 11 of the second corrosion simulation device is located above the shell 1. The first port 11 is used to transfer the absorbent to the regeneration tower for analysis. By simulating the analysis environment of the regeneration tower through the second corrosion simulation device, the corrosion of samples 100 of different materials under different absorbent flow rates, rotation speeds, temperatures and pressures can be obtained, which can provide a reference for the material of the regeneration tower.

[0065] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0068] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] It is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A corrosion simulation device, comprising: A housing having a first opening for introducing an absorbent into the housing; A rotating component includes a rotating shaft and a plurality of mounting plates. At least a portion of the rotating shaft extends into the housing and is rotatable relative to the housing. The rotational speed of the rotating shaft is adjustable. The plurality of mounting plates are located inside the housing and are respectively connected to the rotating shaft. The plurality of mounting plates are spaced apart in the circumferential direction of the housing. The mounting plates are suitable for mounting samples.

2. The corrosion simulation device according to claim 1, wherein, The mounting plates are divided into multiple mounting plate groups, which are arranged at intervals in the extension direction of the housing. Each mounting plate group includes at least two mounting plates, and the two mounting plates are evenly spaced apart in the circumferential direction of the housing.

3. The corrosion simulation apparatus according to claim 1 or 2, wherein, On the projection plane of the rotating shaft in the axial direction, a plurality of mounting plates are arranged in an alternating manner.

4. The corrosion simulation device according to claim 2, characterized in that, The mounting plate extends radially along the housing, with one end of the mounting plate in its width direction higher than the other end in its width direction.

5. The corrosion simulation apparatus according to claim 1 further includes a first distributor located within the housing and arranged adjacent to the first port, the first distributor being used to distribute absorbent entering the housing.

6. The corrosion simulation apparatus according to claim 5 further includes a second distributor, the housing further having a second port, the second port and the first port being arranged at intervals in the extending direction of the housing, and the second distributor being arranged adjacent to the second port.

7. The corrosion simulation apparatus according to any one of claims 1 to 6 further includes a first valve, one end of which is connected to the first port, and the other end of which is adapted to be connected to an absorbent, the first valve being used to control the flow rate of the absorbent entering the housing.

8. The corrosion simulation device according to claim 7 further includes a second valve, one end of which is connected to the second port, and the other end of which is connected to a gas source, the second valve being used to control the gas flow rate entering the housing.

9. The corrosion simulation apparatus according to any one of claims 1 to 8 further includes an adjusting member connected to the housing, the adjusting member being used to adjust the temperature and pressure inside the housing.

10. A corrosion simulation system, comprising a heat exchanger and two corrosion simulation devices, wherein the two corrosion simulation devices are connected to each other via the heat exchanger, and the corrosion simulation device is any one of claims 1 to 9.

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