High efficiency flush erosion test device and system thereof

Abstract

The application provides a high-efficiency erosion corrosion testing device and system, which comprises a testing container with at least two levels of plane structure at the bottom, including platforms with different heights and steps; a corrosion solution is stored in the recessed area formed by the steps, and the solution height is limited to be not higher than the horizontal range of the platforms; a sample disc is arranged in the interior of the testing container and used for hanging a test sample; a container cover is used for sealing the testing container; and a driving part is arranged below the platforms, a connecting part of the driving part is at least partially inserted into the interior of the testing container and connected with the sample disc, and the connecting part is used for driving the sample disc to move along a preset track in the interior of the testing container; wherein, when the erosion corrosion testing operation is performed, the test sample is fully exposed to the corrosion solution, and the sample disc is not in contact with the corrosion solution. The application can reduce the weight and load of the container cover, improve the convenience and safety of operation, and provide a testing condition for more accurately evaluating the corrosion resistance of materials.

Description

Technical Field

[0001] This invention relates to the field of material performance testing, and in particular to a high-efficiency erosion corrosion testing device and system. Background Technology

[0002] Erosion corrosion testing is a widely used experimental method in materials science and engineering to evaluate the performance and durability of materials in corrosive environments. This test method simulates real-world corrosion conditions by exposing test samples to a corrosive liquid environment in order to assess the corrosion resistance of materials.

[0003] Traditional corrosion testing methods use static immersion, where the test sample is completely submerged in a corrosive solution. However, this method has limitations, such as the inability to accurately simulate the erosion corrosion environment under actual working conditions and the difficulty in controlling the erosion effect of the corrosive solution on the sample. To overcome these problems, erosion corrosion testing devices have been introduced and widely used. This device simulates the erosion corrosion effect under actual working conditions by subjecting the test sample to reciprocating motion in the corrosive solution, thereby more accurately evaluating the corrosion resistance of materials.

[0004] In the applicant's previous patent application (CN 115346697 A), a scouring corrosion testing device and system were disclosed. This device allows the test sample to contact the corrosive solution during the test, while the fixing component remains in contact with the solution, thereby improving the service life of the fixing component. Furthermore, the motor-driven fixing component can move the test sample within the corrosive solution, thus creating a test condition where there is relative motion between the test sample and the corrosive solution. This effectively tests the corrosion resistance of the test sample under scouring conditions, and thus improves the accuracy of corrosion resistance testing by simulating the material's performance under real-world conditions.

[0005] However, this technical solution also has some areas that need improvement: For example, the motor is mounted above the container lid, which needs to be opened each time a test sample is changed. However, the lid, which integrates the motor, connecting rod, fasteners, and test sample, is quite heavy, increasing the complexity and inconvenience of opening the lid. Furthermore, prolonged lid opening may introduce additional risks, such as potential sample contamination or accidental leakage. This design undoubtedly leads to longer operation times, thus reducing testing efficiency.

[0006] Therefore, how to provide a more efficient, convenient and safe corrosion resistance testing experience, and further improve the accuracy of corrosion resistance performance testing, are technical problems that urgently need to be solved in this field. Summary of the Invention

[0007] To provide a more efficient, convenient, and safe corrosion resistance testing experience and further improve the accuracy of corrosion resistance performance testing, according to one aspect of the present invention, a high-efficiency erosion corrosion testing device is provided. The device comprises a test container, a sample tray, a container lid, and a drive unit. The test container has a planar structure with at least two levels at its bottom, including platforms and steps of different heights. A corrosive solution is stored in the recessed area formed by the steps, and the solution height is limited to a level not exceeding that of the platforms. The sample tray is disposed inside the test container for suspending the test sample. The container lid is used to seal the test container. The drive unit is disposed below the platforms, and a connector of the drive unit is at least partially inserted into the test container and connected to the sample tray for driving the sample tray to move along a preset trajectory inside the test container. During the erosion corrosion test, the test sample is fully exposed to the corrosive solution, and the sample tray does not come into contact with the corrosive solution.

[0008] In this device, the bottom of the test container has a two-tiered planar structure, including a platform in the middle and a step at the outer edge.

[0009] In this device, the bottom of the test container has a two-tiered planar structure, including a step in the middle and a platform at the outer edge.

[0010] In this device, the bottom and sides of the step are perpendicular to each other and / or the sides of the step are perpendicular to the platform, or a smooth curved transition is used.

[0011] In this device, the sample tray consists of a support structure and a tray body. The tray body is used to suspend the test sample, and the support structure is used to stably support the tray body.

[0012] In this device, the support structure consists of a central shaft and multiple brackets extending outward from the central shaft, with the brackets extending radially outward to the connection point with the disc body.

[0013] In this device, the disc has at least one fixing structure for suspending the test sample.

[0014] In this device, the at least one fixing structure is arranged with the center of the disc as the center and with at least one radius.

[0015] In this device, the distance from the fixed structure to the center of the disk is greater than half the length of the platform in the horizontal direction.

[0016] In this device, the distance from the fixed structure to the center of the disc is less than half the length of the step in the horizontal direction.

[0017] In this device, the fixing structure is a receiving hole that penetrates the disc body; the device also includes a fixing member that is connected to the test sample and is used to fix one end of the test sample above the receiving hole, and the other end of the test sample passes through the receiving hole and is suspended below the receiving hole.

[0018] In this device, the test sample is detachably connected to the fixture.

[0019] In this device, the receiving hole is composed of a first part and a second part, wherein the shape of the first part matches the shape of the fastener and is used to receive at least a portion of the fastener's height; the shape of the second part matches the shape of the test sample and is used to receive at least a portion of the test sample's height.

[0020] In this device, the portion of the disk surface covered by the disk has at least one layer of planar structure.

[0021] In this device, the drive unit is used to rotate and / or lift the sample tray inside the test container.

[0022] The device also includes a fluid circulation drive unit, which is located outside the test container and is used to drive the corrosive solution to move in the opposite direction to the rotation of the sample disk driven by the drive unit.

[0023] In this device, the fluid circulation drive includes a fluid circulation pump, a drive mechanism, and a transmission mechanism. The fluid circulation pump is connected to the recessed area of ​​the test container through inlet and outlet pipes for circulating the corrosive solution. The drive mechanism is connected to the fluid circulation pump to provide driving force. The transmission mechanism is used to transmit the rotational motion of the drive mechanism to the fluid circulation pump. When performing the scouring corrosion test, the external fluid circulation drive controls the flow direction and flow rate of the corrosive solution to control the corrosive solution to rotate in the opposite direction to the rotational motion of the sample disk driven by the drive unit.

[0024] The high-efficiency erosion corrosion testing device provided by this invention allows the test sample to reciprocate in a corrosive solution, simulating the erosion corrosion effect under real working conditions. This relative motion testing condition is closer to actual use and can more accurately evaluate the corrosion resistance of materials.

[0025] The high-efficiency erosion corrosion testing device provided by this invention optimizes the device structure by placing the drive unit below the platform rather than above the container lid. Firstly, separating the drive unit from the container lid avoids the weight and load associated with directly mounting the drive unit on the lid, reducing the weight of the lid and the load on the device when opening it. This not only makes operation easier and more convenient but also improves operational ease. Secondly, the lighter container lid is more stable and safer during opening, reducing the probability of accidental drops, slippage, and malfunctions, and minimizing the risks of sample contamination, equipment damage, and leakage.

[0026] The high-efficiency erosion corrosion testing device provided by this invention achieves rapid, accurate, and uniform erosion corrosion of test samples through the coordinated operation of the drive unit and the fluid circulation drive device. This device is multifunctional and highly automated, applicable to different types of test samples and corrosive environments, providing a reliable testing solution for corrosion performance evaluation and material screening.

[0027] According to one aspect of the present invention, a high-efficiency erosion corrosion testing system is provided, which includes the aforementioned high-efficiency erosion corrosion testing device and a first control device, the first control device being used to drive the drive unit in the high-efficiency erosion corrosion testing device.

[0028] The system also includes a second control unit for driving the fluid circulation drive to regulate the flow rate and direction of the corrosive solution. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 The diagram shown is a structural schematic of a high-efficiency erosion corrosion testing device provided in one embodiment of the present invention;

[0031] Figure 2 , 3 The diagrams shown are schematic representations of the structure of a test container provided in one embodiment of the present invention.

[0032] Figure 4 The diagram shown is a schematic diagram of the internal structure of a high-efficiency erosion corrosion testing device provided in one embodiment of the present invention.

[0033] Figure 5 The diagram shown is a schematic diagram of the bottom structure of a high-efficiency erosion corrosion testing device provided in one embodiment of the present invention;

[0034] Figure 6 The diagram shown is a top view of a high-efficiency erosion corrosion testing device with the container cap removed, according to one embodiment of the present invention.

[0035] Figure 7 What is shown is Figure 6 Sectional view of AA;

[0036] Figure 8The diagram shown is a structural schematic of a test container provided in one embodiment of the present invention;

[0037] Figure 9 The diagram shown is a structural schematic of a support structure provided in one embodiment of the present invention;

[0038] Figure 10 (a) shows a structural schematic diagram of the receiving hole provided in one embodiment of the present invention; (b) shows a schematic diagram of the installation of the fastener and test sample in the receiving hole provided in one embodiment of the present invention.

[0039] Figure 11 The diagram shown is a schematic diagram of a stepped disk structure provided in one embodiment of the present invention;

[0040] Figure 12 What is shown is with Figure 3 A schematic diagram of the internal structure of the high-efficiency erosion corrosion testing device corresponding to the structure is shown.

[0041] Figure 13 The diagram shown is a schematic representation of the architecture of a fluid circulation drive device provided in one embodiment of the present invention;

[0042] Figure 14 The diagram shown is a schematic representation of the architecture of a high-efficiency erosion corrosion testing system provided in one embodiment of the present invention. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] One aspect of the present invention provides a high-efficiency erosion corrosion testing device.

[0045] Reference Figure 1 As shown, the erosion corrosion testing device 10 provided by the present invention is, in practice, a container structure, comprising a test container 11 and a container lid 13 for sealing the test container 11. The container lid 13 can be opened and closed manually or automatically; in the closed state, the container lid 13 seals the internal space of the test container 11. In one embodiment, the container lid 13 can be positioned above or on the side of the test container 11. In one embodiment, the test container 11 can be rectangular, cylindrical, spherical, conical, or irregularly shaped. In one embodiment, the test container 11 can be made of a transparent material to allow observation of the testing process.

[0046] Reference Figure 2 and 4 As shown in Figure 7, in addition to the aforementioned test container 11 and container lid 13, the device 10 also has a sample tray 12 and a drive unit 14.

[0047] The bottom of the test container 11 has a planar structure with at least two levels, including a platform 111 and a step 112 of different heights; wherein, the corrosion solution 113 is stored in the recessed area formed by the step 112, and the solution height is limited to a level not higher than that of the platform 111.

[0048] The drive unit 14 is disposed below the platform 111. The connector 141 of the drive unit 14 is at least partially inserted into the test container 11 and connected to the sample tray 12, for driving the sample tray 12 to move along a preset trajectory inside the test container 11. In one embodiment, the described movement along the preset trajectory refers to driving the sample tray 12 to rotate and / or rise and fall inside the test container 11 according to a preset motion logic.

[0049] When the device 10 performs the scouring corrosion test, the test sample 121 is fully exposed to the corrosion solution 113, and the sample tray 12 does not come into contact with the corrosion solution 113.

[0050] In this embodiment of the invention, by using the device 10, the test sample 121 can reciprocate in the corrosive solution 113, simulating the scouring and corrosion effect under real working conditions. This relative motion test condition is closer to actual use and can more accurately evaluate the corrosion resistance of the material.

[0051] Furthermore, compared to the traditional design where the drive unit 14 is positioned above the container lid 13, the structure of the device 10 is optimized by placing the drive unit 14 below the platform 111 instead of above the container lid 13. The separation of the drive unit 14 from the container lid 13 avoids the weight and load associated with directly mounting the drive unit 14 onto the container lid 13. This structural improvement effectively reduces the weight of the container lid 13, lowering the load on the device 10 when opening the container lid 13. Moreover, by reducing the weight of the container lid 13, opening it becomes easier and more convenient. Compared to the previously heavier container lid 13, operators can handle it more easily, reducing operational complexity and inconvenience, and improving operational convenience. Furthermore, the lighter weight of the container lid 13 makes opening it more stable and safer. The lighter container lid 13 reduces the risk of accidental drops or slippage, lowering the probability of adverse events such as sample contamination, equipment damage, or accidental leakage. Therefore, the improved design of the device 10 reduces operational risks and improves the safety of experimental operations.

[0052] Reference Figure 2 As shown, in some embodiments, the bottom of the test container 13 has a two-tiered planar structure, including a platform 111 located in the middle and a step 112 located at the outer edge. The plane of the platform 111 is located above the plane of the step 112.

[0053] By setting platforms 111 and steps 112 of different heights at the bottom of the test container 13, a planar structure with two height levels at the bottom is achieved. Platform 111 is located above the plane of step 112, creating a space in the middle of the bottom of the test container 13 to accommodate the drive unit 14. Step 112 is located below the plane of platform 111, creating a recessed area inside the test container 13. This recessed area, formed by the design of step 112, creates a lower area inside the test container 13. This recessed area is used to store the corrosive solution 113, completely surrounded by the container wall and step 112. The recessed area formed around the edge of step 112 effectively isolates and stores the corrosive solution 113, preventing leakage or spillage.

[0054] By having platforms or steps of varying heights in the multi-layered planar structure at the bottom of the test container 11, different support planes are provided to accommodate the installation of the drive unit and / or other components, and to provide appropriate storage space for the corrosive solution 113. By setting platforms 111 or steps 112 of different heights, the flow and scouring effect of the solution can be optimized, ensuring that the test sample 121 is fully exposed to the corrosive solution 113 and that effective corrosion testing is performed.

[0055] Furthermore, to ensure operational safety and control the amount of corrosive solution 113 used, the solution height is limited to no higher than the level of platform 111. By limiting the solution height to the level of platform 111, excessive use or spillage of the solution can be avoided, while ensuring the accuracy and controllability of the experimental operation.

[0056] In some embodiments, the erosion corrosion test performed by the device 10 is as follows:

[0057] (1) Preparation stage: Open the container lid 13 and install the test sample 121 on the sample tray 12.

[0058] (2) Initial position setting: Start the drive unit 14, drive the connector 141 to move down and up towards the direction of the corrosion solution 113, so as to drive the sample tray 12 down to the recessed area of ​​the storage corrosion solution 113, and ensure that the test sample 121 is partially or completely immersed in the corrosion solution 113.

[0059] (3) Start of erosion corrosion test: According to the preset motion logic, the drive unit 14 drives the connector 141 to rotate and / or lift, and the sample plate 12 begins to rotate and / or lift according to the preset motion mode. This can simulate the erosion corrosion environment, so that the test sample 121 reciprocates in the corrosion solution 113.

[0060] (4) Erosion and corrosion process: Test sample 121 is continuously subjected to erosion and corrosion in the corrosive solution 113. This process can last for a period of time, depending on the specific test requirements and the set time.

[0061] (5) End of erosion corrosion test: After the test time is reached or the preset conditions are met, the movement of the drive unit 14 is stopped. The sample plate 12 is raised again to remove the test sample 121 from the corrosion solution, thus ending the erosion corrosion test process of the device 10.

[0062] Throughout the test, the drive unit 14 drives the connector 141 to rotate and / or rise and fall, thereby driving the sample tray 12 to rotate and / or rise and fall according to a preset motion logic. By controlling the descent, ascent, and rotation of the sample tray 12, the test sample 121 can undergo a scouring corrosion test in a corrosive solution. This working process can simulate the scouring corrosion environment under actual working conditions to evaluate the corrosion resistance of the test sample 121.

[0063] In some embodiments, after the erosion test is completed, a cooling phase begins.

[0064] During the cooling phase, the container lid 13 does not need to be opened immediately. The sample tray 12 and the test sample 121 remain inside the test container 11 to cool down through natural heat dissipation. The specific cooling time can be determined based on the material properties of the test sample 121 and the testing requirements. After the test sample 121 has cooled down, the container lid 13 can be opened, and the test sample 121 can be removed from the sample tray 12, thus completing the entire testing process.

[0065] By keeping the sample tray 12 within the test container 11 for cooling, the test sample 121 can be gradually cooled, reducing the impact of thermal stress on the sample. During the cooling process, the container lid 13 does not need to be opened immediately, as natural cooling can effectively reduce the temperature of the test sample 121. This cooling process protects the integrity and performance of the test sample 121 and ensures the safety of subsequent operations.

[0066] In some embodiments, the test container 13 of the present invention is designed as a two- or multi-layer structure to provide better protection and corrosion resistance. Here, "layers" refers to the inner and outer layers of the container. For example, in one embodiment, an outer shell is provided to enclose the test container 13, forming a protective layer to prevent the external environment from affecting the test container; while the inner layer is made of a corrosion-resistant material to increase the corrosion resistance of the test container 13.

[0067] By employing a two- or multi-layered test container 13, contact between the test container 13 and the external environment can be effectively isolated, preventing corrosive solutions from eroding the container. This also provides an additional protective layer, reducing interference from external factors during the testing process. The outer shell provides physical protection against damage from accidental impacts or other external forces, while the inner layer, made of corrosion-resistant material, resists the erosion of corrosive solutions, extending the service life of the test container 13 and maintaining the stability and accuracy of the testing process.

[0068] In some embodiments, the drive unit 14 may be a motor, such as a dual-motion motor, which is a motor with two different modes of motion, capable of simultaneously achieving rotational and linear motion. A dual-motion motor typically consists of a main rotary motor and an auxiliary linear motor. The main rotary motor provides the rotational motion of the motor, while the auxiliary linear motor provides the linear motion. The dual-motion motor can simultaneously achieve rotational and linear motion on a single axis, which may be the connector 141 described in one embodiment.

[0069] In addition to dual motion motors, the drive unit 14 can also use other types of motors or motion devices to realize the rotation and lifting motion of the sample tray 12.

[0070] In some embodiments, the device 10 may be further provided with a cooling device to achieve a faster and more controllable cooling process, reduce the cooling time of the test sample 121, and better meet the testing requirements.

[0071] Reference Figure 3 As shown, in some embodiments, the bottom of the test container 11 has a two-tiered planar structure, including a step 112 located in the middle and a platform 111 located at the outer edge, with the plane of the platform 111 located above the plane of the step 112.

[0072] and Figure 2 The difference between the platform 111 located in the middle and the step 112 located at the outer edge is that the platform 111 and the step 112 are in different positional relationships. Figure 3 In the layout shown, step 112 is located in the middle, and platform 111 is located at the outer edge; while Figure 2In the layout shown, platform 111 is located in the middle and step 112 is located at the outer edge. By placing step 113 in the middle of test container 11, the recessed area formed for storing corrosive solution 113 is confined to the middle of test container 11. This layout ensures optimal utilization of sample tray 12, that is, sample tray 12 can completely cover the recessed area without any gaps, without the need to design a hollow shape in the middle to isolate platform 111, thereby improving the convenience and efficiency of operation.

[0073] Reference Figure 2 As shown, in some embodiments, the bottom surface of step 112 is perpendicular to the side surface and / or the side surface of step 112 is perpendicular to the platform 111.

[0074] The bottom and side surfaces of step 112, as well as the side surface of step 112 and platform 111, are vertically aligned, meaning the bottom and side surfaces form right angles, and the side surfaces make perpendicular contact with platform 111. This design simplifies the structure and provides a stable connection. The vertical alignment effectively ensures a tight contact between step 112 and platform 111, reduces potential gaps, and improves the stability and sealing of the entire structure.

[0075] Reference Figure 8 As shown, in some embodiments, the bottom surface of step 112 and its side surface and / or the side surface of step 112 and the platform 111 are smoothly transitioned by curved surfaces.

[0076] The bottom and side surfaces of step 112, as well as the side surfaces of step 112 and platform 111, are connected by a smooth curved surface transition. This means that the connection between the bottom and side surfaces, and between the side surfaces and platform 111, uses a curved surface design, making the transition smoother and more continuous. A smooth curved surface transition can improve the aesthetics of the structure and reduce potential damage or inconvenience caused by sharp edges.

[0077] refer to Figure 4 , 6 As shown in Figures 7 and 8, in some embodiments, the sample tray 12 is composed of a support structure 122 and a tray body 123. The tray body 123 is used to suspend the test sample 121, and the support structure 122 is used to stably support the tray body 123.

[0078] The disc 123 is a key component of the sample disc 12, used to suspend the test sample 121. It can be a structure with a certain thickness and a planar or curved surface, possessing sufficient strength and rigidity to support the weight of the test sample 121. The surface of the disc 123 can be made of a corrosion-resistant material, thereby helping to protect the disc 123 from the corrosion of the corrosive solution 113, extending its service life and ensuring the reliability of the testing process. This invention does not particularly limit the type of corrosion-resistant material; for example, it can be some commonly used corrosion-resistant materials with excellent corrosion resistance, including but not limited to stainless steel, titanium alloys, nickel alloys, etc. These materials have good chemical corrosion resistance and resistance to corrosive media erosion, and can withstand the effects of corrosive solutions without damage. By using a corrosion-resistant material on the surface of the disc 123, the corrosion of the disc 123 by the corrosive solution 113 can be effectively prevented, avoiding the dissolution, corrosion, or damage of the material. This ensures the stability and reliability of the disc 123 in the erosion corrosion test and protects the test sample 121 from contamination or damage by the disc 123 material.

[0079] The support structure 122 is used to stably support the disc 123, aiming to provide stable support and fix the position of the disc 123. Through the combination of the support structure 122 and the disc 123, the sample disc 12 can effectively suspend and support the test sample 121. The support structure 122 provides stable support, ensuring the stability and reliability of the sample disc 12 during the testing process. The disc 123 serves as a suspension platform for the sample, allowing the test sample 121 to be suspended in an appropriate position and exposed to the corrosive solution 113, thereby achieving the purpose of erosion corrosion testing.

[0080] In some embodiments, the support structure 122 consists of a central shaft 125 and a plurality of brackets 126 extending outward from the central shaft 125, the brackets 126 extending radially outward to the connection with the disc body 123.

[0081] The support structure 122 is designed with an umbrella-like structure, consisting of a central shaft 125 and multiple supports 126. The central shaft 125 is located at the center of the sample tray 12, serving to support and stabilize it. The supports 126, extending outward from the central shaft 125, are arranged radially and extend to the connection point with the tray body 123. In one embodiment, the length and angle of each support can be adjusted as needed to accommodate test samples of different types and sizes.

[0082] First, the central shaft 125 provides the main support point for the sample tray 12, ensuring its stability and balance. It bears the weight of the sample tray 12 and transfers the gravity to the bottom of the test container 11 via the bracket 126. This structure effectively reduces the swaying and rocking of the sample tray 12 during movement, providing reliable support and allowing the sample tray 12 to rotate and / or rise and fall according to a preset motion logic. Second, the brackets 126 extend radially outward from the central shaft 125, forming a stable support frame. These brackets 126 are evenly distributed around the central shaft 125 and extend to the connection point of the tray body 123. Through this design, the brackets 126 provide support while also increasing the stability and rigidity of the tray body 123. They form a balanced structure, enabling the sample tray 12 to maintain balance during movement and reducing unnecessary vibration and deformation.

[0083] The umbrella-shaped design of the entire support structure 122 ensures a uniform distribution of supporting force on the sample tray 12, guaranteeing its stability and reliability. Simultaneously, this design provides sufficient space to accommodate samples of various sizes and types. The strength and stability of the support structure 122 can be optimized and adjusted according to actual needs to adapt to different erosion corrosion testing requirements.

[0084] Reference Figure 9 As shown, in some embodiments, the support structure 122 can also be designed as a hat-shaped structure, and the surface of the disc 123 is set as the brim surface of the hat-shaped structure.

[0085] Specifically, the support structure 122 consists of a central shaft 125 and an outwardly extending bracket 126, forming a hat shape. The central shaft 125 is located at the center of the sample tray 12 and provides the main support point. The bracket 126 extends outward from the central shaft 125 to the edge of the tray 123 near the support structure 122. This hat-shaped structure allows the supporting force to be evenly distributed on the surface of the tray 123, providing stable support and balance. The surface of the tray 123 is designed as the brim of the hat-shaped structure, so that the brim connects with the bracket 126, providing a larger contact area and support area. By setting the brim of the hat-shaped structure as the surface of the tray 123, the stability and rigidity of the sample tray 12 can be enhanced, preventing unnecessary deformation or movement during the erosion corrosion test.

[0086] The cap-shaped structure design not only makes the support structure 122 more robust and stable, but also provides better adaptability and flexibility. The sample tray 12 can accommodate samples of different sizes and shapes, and the support structure 122 can be adjusted and optimized as needed to meet different erosion corrosion test requirements.

[0087] In some embodiments, the portion of the surface covered by the disk 123 has at least one layer of planar structure.

[0088] In some embodiments, the surface of the disc 123 is covered by a multi-layered planar structure, where each layer has a different height, for example, it can be designed as a stepped structure. By designing the surface of the disc 123 as a multi-layered planar structure, more contact area and stability can be provided for the sample disc 12. Each planar structure represents a step, with its height slightly higher or lower than the previous step. This stepped design can effectively prevent the sample from slipping or tilting during the erosion corrosion test, ensuring that the side sample 121 can be firmly fixed to the disc 123. The height of each step can be adjusted as needed to accommodate different sample sizes and shapes. Higher steps can be used to support larger samples, while lower steps can be used to support smaller samples. This multi-layered design allows the sample disc 12 to accommodate a variety of samples and provides a stable support platform.

[0089] Furthermore, by designing the disc 123 into a stepped structure with multiple levels, different immersion depths can be achieved to accommodate corrosion test samples 121 with varying depth requirements. The height of each stepped level can be designed and adjusted as needed. Higher stepped levels can be used for samples requiring shallower immersion, allowing them to be partially immersed in the corrosion solution 113. Lower stepped levels can be used for samples requiring deeper immersion, allowing them to be completely immersed in the corrosion solution 113. By controlling the lifting and lowering movement of the disc 123, the test sample 121 can be positioned on a stepped level of the appropriate height to achieve the desired immersion depth. In this way, test samples 121 of different heights can be immersed in corrosion solutions 113 at different depths for erosion corrosion testing. This design provides greater flexibility and adaptability, enabling the testing device to meet corrosion testing requirements of different depths and to be adjusted and optimized as needed to obtain the desired test results.

[0090] Reference Figure 11 As shown, in one embodiment, the disk 123 is composed of multiple stepped layers, namely 123a, 123b, and 123c. The height of these layers decreases progressively. The planar structure of each layer is designed as an independent step with specific height and planar dimensions. This design allows the disk 123 to have multiple platforms, which can meet corrosion tests with different depth requirements.

[0091] For example, level 123a could be the highest step, suitable for test sample 121 requiring a shallower corrosion depth. Level 123b could be the second highest step, suitable for samples requiring a medium corrosion depth. Finally, level 123c could be the lowest step, suitable for test sample 121 requiring a deeper corrosion depth.

[0092] refer to Figure 4 , 6 As shown in Figures 7 and 8, in some embodiments, the disc 123 has at least one fixing structure 124 for suspending the test sample 121. The at least one fixing structure is arranged with the center of the disc 123 as the center and with at least one radius.

[0093] In some embodiments, the fixing structure 124 is a receiving hole penetrating the disc body 123. The fixing structure 124, as a receiving hole penetrating the disc body 123, has a specific design. Specifically, these fixing structures 124 can consist of multiple openings, which are arranged with the center of the disc body 123 as the center and according to different radii. For example, m openings can be arranged according to a first radius, n openings according to a second radius, and so on. The first radius is smaller than the second radius, and m and n should be different values. The purpose of this design is to allow the suspended test sample 121 to move at a corresponding linear velocity according to the position of the openings when the disc body 123 moves, thereby enabling corrosion resistance testing under different scouring amplitudes. By controlling the movement of the disc body 123 and selecting openings of different radii for suspending the test sample 121, scouring motions of different speeds can be achieved, thereby simulating diverse test conditions.

[0094] In some embodiments, the distance from the fixing structure 124 to the center of the disk 123 is greater than half the length of the platform 111 in the horizontal direction.

[0095] The distance between the fixed structure 124 and the center of the disk 123 also needs to meet certain conditions to ensure its proper position and function. The distance between the fixed structure 124 and the center of the disk 123 should be greater than half the horizontal length of the platform 111. This is to ensure that the fixed structure 124 can fall completely into the recessed area of ​​the corrosive solution storage 113, i.e., the area corresponding to the step 112, and not into the area corresponding to the platform 111. This is so that the test sample 121 can be completely aligned with the recessed area of ​​the corrosive solution storage 113, ensuring that the test sample 121 is in the correct position for the scouring corrosion test.

[0096] In some embodiments, the distance from the fixing structure 124 to the center of the disc 123 is less than half the length of the step 112 in the horizontal direction.

[0097] This corresponds to Figure 3 The design shown is that the bottom of the test container 11 has a two-level planar structure, including a step 112 in the middle and a platform 111 at the outer edge, with the plane of the platform 111 above the plane of the step 112.

[0098] Similarly, by ensuring that the distance from the fixing structure 124 to the center of the disk 123 is less than half the horizontal length of the step 112, the fixing structure 124 can be placed in the area corresponding to the step 112, i.e., the recessed area in the middle. In this way, the fixing structure 124 can match the recessed area where the corrosive solution 113 is stored, ensuring that the test sample 121 is in the correct position for the scouring corrosion test.

[0099] In some embodiments using the fixing structure 124, the test sample 121 can be fixed to the receiving hole via a threaded connection. By forming a threaded connection between the test sample 121 and the receiving hole, it is ensured that the test sample 121 is securely fixed to the disc body 123, preventing movement or loosening during corrosion testing. This threaded connection method provides a reliable fixing effect and is suitable for demanding corrosion tests and long-term tests.

[0100] In addition to using a threaded connection, the test specimen 121 can also be directly placed into the receiving hole. The design and size of the receiving hole ensure that the test specimen 121 can be stably placed on the disc 123 for erosion corrosion testing. This direct placement method is simple and convenient.

[0101] Besides threaded connections and direct insertion into the receiving hole, the test sample 121 can also be suspended in the receiving hole using methods including, but not limited to, spring clamps, magnetic adsorption, and clamp fixation. A spring clamp can be used to clamp and fix the test sample 121 in the receiving hole. The spring provides a tight clamping force, ensuring the test sample 121 remains stable during testing. If the test sample 121 is made of magnetic material, it can be magnetically adsorbed into the receiving hole. A magnet or magnetic base can be placed above the receiving hole, using magnetic adsorption to fix the test sample 121 in the receiving hole. Alternatively, a specially designed clamp can be used to fix the test sample 121 in the receiving hole; the clamp can employ a clamping or locking mechanism to ensure the test sample 121 remains stable during testing.

[0102] refer to Figure 10 As shown in (b), the device 10 also includes a fixing member 127, which is connected to the test sample 121 and is used to fix one end of the test sample 121 above the receiving hole, while the other end of the test sample 121 passes through the receiving hole and is suspended below the receiving hole.

[0103] In some embodiments, the test specimen 121 is detachably connected to the fastener 127, for example, by a threaded connection. This connection method allows the test specimen 121 and the fastener 127 to be easily disassembled and replaced. For example, the fastener 127 may have internal threads that match the external threads at the tip of the test specimen 121, and the test specimen 121 is secured above the receiving hole by rotating the fastener 127.

[0104] In other embodiments, the test specimen 121 and the fastener 127 may be designed to be integrally formed, meaning they are manufactured as a single component. In this design, the shape and structure of the fastener 127 are matched to the requirements of the test specimen 121 to ensure that the fastener 127 can securely hold the test specimen 121 and provide the necessary support.

[0105] refer to Figure 10 As shown in (a) and (b), in some embodiments, the receiving hole is composed of a first portion 124a and a second portion 124b, wherein the shape of the first portion matches the shape of the fastener 127 and is used to receive at least a portion of the height of the fastener 127; the shape of the second portion matches the shape of the test sample 121 and is used to receive at least a portion of the height of the test sample 121.

[0106] Specifically, the receiving hole can be divided into two parts: a first part 124a and a second part 124b. This design aims to meet the shape requirements of the fastener 127 and the test specimen 121 to achieve reliable connection and suspension: the shape of the first part 124a matches the shape of the fastener 127 and is designed to accommodate at least a portion of the height of the fastener 127. This can be achieved through appropriate shape and size to ensure that the fastener 127 can be securely inserted and fixed in the receiving hole. For example, this matching shape can be circular, square, hexagonal, or other suitable shapes to ensure a tight fit between the fastener 127 and the receiving hole. The shape of the second part 124b matches the shape of the test specimen 121 and is designed to accommodate at least a portion of the height of the test specimen 121. This can also be achieved through appropriate shape and size to ensure that the test specimen 121 can be smoothly inserted and suspended below the receiving hole. This matching shape is typically consistent with the shape of the test specimen, such as cylindrical, square, rod-shaped, etc., to provide stable support and fixation.

[0107] By dividing the receiving hole into two parts to accommodate the requirements of the fastener 127 and the test specimen 121 respectively, a reliable connection and suspension can be achieved. The fastener 127 can be easily inserted into the first part 124a and secured in the receiving hole. The test specimen 121 can be inserted from the top of the receiving hole and then suspended below the receiving hole through the second part 124b. This design ensures that the fastener 127 and the test specimen 121 have a stable position in the receiving hole and maintain the required connection and support relationship.

[0108] Corresponding to Figure 3 The design shown depicts a two-tiered planar structure at the bottom of the test container 11, including a step 112 in the middle and a platform 111 at the outer edge, with the plane of platform 111 above the plane of step 112. (Refer to...) Figure 12As shown, in some embodiments, the connecting member 141 of the drive unit 14 is connected to one end of the horizontally oriented connecting shaft 143 via a bevel gear 142, and is vertically arranged so that the connecting shaft 143 and the connecting member 141 can rotate synchronously. The other end of the connecting shaft 143 is connected to one end of the connecting shaft 145 via a bevel gear 144, and is also vertically arranged so that the connecting shaft 145 and the connecting shaft 143 can rotate synchronously. The other end of the connecting shaft 145 is connected to the sample tray 12, thereby driving the sample tray 12 to rotate synchronously.

[0109] With this design, the sample tray 12 and the connector 141 can maintain synchronous rotation. When the connector 141 rotates, the connecting shafts 143 and 145 also rotate accordingly due to the action of the bevel gears 142 and 144, thereby transmitting the rotational motion to the sample tray 12. In this way, the sample tray 12 can rotate according to the preset motion logic to complete the erosion corrosion test.

[0110] Furthermore, the lifting and lowering movement of the connector 141 can also control the lifting and lowering of the sample tray 12. By controlling the lifting and lowering of the connector 141, the sample tray 12 can be made to move up and down inside the test container 11 according to a preset motion logic.

[0111] The synchronous rotation and lifting of the sample tray 12 can be achieved through the rotation and lifting motion of the connecting member 141 of the drive unit 14, thereby enabling the erosion corrosion testing device 10 to operate according to a preset motion logic. This design can effectively control the immersion depth and erosion amplitude of the test sample 121, thus achieving accurate corrosion testing.

[0112] Reference Figure 13 As shown, the device 10 also includes a fluid circulation drive device 15, which is disposed outside the test container 11 and is used to drive the corrosion solution 113 to move in the opposite direction to the rotation of the sample disk 12 driven by the drive unit 14.

[0113] In some embodiments, the fluid circulation drive device 15 includes a fluid circulation pump 151, a drive mechanism 152, and a transmission mechanism 153.

[0114] A fluid circulation pump 151 is connected to the recessed area of ​​the test container 11 via inlet and outlet pipes for circulating the corrosive solution 113. A drive mechanism 152 is connected to the fluid circulation pump 151 to provide driving force. A transmission mechanism 153 is used to transmit the rotational motion of the drive mechanism 152 to the fluid circulation pump 151. During the scouring corrosion test, the external fluid circulation drive device 15 controls the flow direction and flow rate of the corrosive solution to control the corrosion solution 113 to rotate in the opposite direction to the rotational motion of the sample disk 12 driven by the drive unit 14.

[0115] Specifically, the fluid circulation pump 151 is connected to the recessed area of ​​the test container 11 via inlet and outlet pipes to circulate the corrosion solution 113. It serves to extract and re-inject the corrosion solution 113 from the recessed area, ensuring the corrosion solution 113 remains in a flowing state. A drive mechanism 152 is connected to the fluid circulation pump 151, providing it with driving force. The drive mechanism 152 can be an electric motor or other type of drive device, used to rotate the fluid circulation pump 151, thereby generating sufficient power to drive the flow of the corrosion solution 113. A transmission mechanism 153 is used to transmit the rotational motion of the drive mechanism 152 to the fluid circulation pump 151. The transmission mechanism 153 may include, for example, gears, belts, chains, or other transmission elements, for transmitting and converting the driving force. Under the action of the transmission mechanism 153, the rotational motion of the drive mechanism 152 can be effectively converted into the working motion of the fluid circulation pump 151.

[0116] During the erosion corrosion test, the external fluid circulation drive device 15 controls the flow direction and flow rate of the corrosive solution to ensure that the corrosive solution 113 rotates in the opposite direction to the rotation of the sample disk 12 driven by the drive unit 14. This reverse flow configuration helps to achieve a more uniform corrosion effect, thereby improving the accuracy and reliability of the test. With the cooperation of the fluid circulation drive device 15, the corrosive solution 113 can be ensured to flow continuously during the test and erode the test sample 121 according to a preset flow pattern. It effectively controls the movement of the corrosive solution, thereby increasing the relative speed between the test sample 121 and the corrosive solution 113, improving test efficiency and the actual erosion speed.

[0117] One aspect of this invention provides a high-efficiency erosion corrosion testing system.

[0118] Reference Figure 14 As shown, the system 20 includes the erosion corrosion testing device 10 described above and a first control device 21. The first control device 21 is used to drive the drive unit 14 in the high-efficiency erosion corrosion testing device 10.

[0119] The erosion corrosion testing device 10 includes a test container 11, a container cover 13, a drive unit 14, a sample tray 12, and a fluid circulation drive device 15. The functions and roles of these components have been described in detail above and will not be repeated here. Among them, the drive unit 14 drives the rotation and lifting motion of the sample tray 12, so that the test sample 121 undergoes uniform and efficient erosion corrosion in the corrosive solution 113.

[0120] The first control device 21 is a component that controls and drives the erosion corrosion testing device 10. It can be a control system, including components such as a controller, sensors, and actuators. The first control device 21 is connected to the drive unit 14 and achieves precise control of the drive unit 14 by sending commands and receiving feedback information. During the high-efficiency erosion corrosion test, the first control device 21 is responsible for controlling the movement of the drive unit 14. Through the coordinated work of the controller and sensors, the first control device 21 can monitor and adjust the motion parameters of the drive unit 14 in real time, such as rotation speed and lifting speed. According to the test requirements and sample characteristics, the motion mode of the drive unit 14 can be flexibly adjusted to achieve different erosion corrosion conditions and test results.

[0121] In addition, the first control device 21 can also interact with other systems, such as temperature control devices and flow control devices, to achieve comprehensive control of the corrosive environment. By integrating multiple control functions, the high-efficiency erosion corrosion testing system 20 can provide a highly automated, precise, and controllable testing environment, thereby achieving efficient corrosion performance evaluation and material screening.

[0122] In some embodiments, the high-efficiency scouring corrosion testing system 20 further includes a second control device 22 for driving the fluid circulation drive device 15 to adjust the flow rate and flow direction of the corrosion solution 113.

[0123] The fluid circulation drive device 15 is an assembly that drives the corrosive solution 113 to move in the opposite direction to the rotation of the sample disk 12 driven by the drive unit 14. It includes a fluid circulation pump 151, a drive mechanism 152, and a transmission mechanism 153. The fluid circulation pump 151 draws in the corrosive solution 113 from the recessed area of ​​the test container 11 and circulates it. The drive mechanism 152 provides driving force to drive the operation of the fluid circulation pump 151. The transmission mechanism 153 transmits the rotational motion of the drive mechanism 152 to the fluid circulation pump 151.

[0124] The second control device 22 is connected to the fluid circulation drive device 15. By sending commands and receiving feedback information, it controls the fluid circulation drive device 15. It can also be a control system, similar to the first control device 21, and includes components such as a controller, sensors, and actuators. Through the adjustment of the second control device 22, the flow rate and direction of the corrosive solution 113 can be controlled. By adjusting the operating state of the fluid circulation pump 151, the supply of the corrosive solution 113 can be controlled, thereby adjusting the intensity of the scouring corrosion. Simultaneously, by adjusting the flow direction of the fluid circulation pump 151, the flow path of the corrosive solution 113 in the test container 11 can be controlled, further affecting the range and uniformity of the scouring corrosion.

[0125] The second control device 22 in the high-efficiency erosion corrosion testing system 20 works in coordination with the first control device 21. By linking and adjusting the movement and flow of the drive unit 14 and the fluid circulation drive device 15, comprehensive control of the erosion corrosion test is achieved. The advantage of this system is that it can achieve precise adjustment of multiple parameters, enabling the test sample to obtain efficient and uniform erosion corrosion in the corrosive solution 113, further improving the accuracy and repeatability of the test.

[0126] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0127] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply 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 that the first feature is at a lower horizontal level than the second feature.

[0128] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0129] Explanation of reference numerals in the attached figures

[0130] High-efficiency erosion corrosion testing device 10

[0131] Test Container 11

[0132] Platform 111

[0133] Step 112

[0134] Corrosive solution 113

[0135] Sample tray 12

[0136] Test sample 121

[0137] Support structure 122

[0138] Disk body 123

[0139] Fixed structure 124

[0140] Part 1 124a Part 2 124b

[0141] Central axis 125

[0142] Bracket 126

[0143] Fastener 127

[0144] Container lid 13

[0145] Drive Unit 14

[0146] Connector 141

[0147] Bevel gears 142, 144

[0148] Connecting shafts 143, 145

[0149] Fluid circulation drive device 15

[0150] Fluid circulation pump 151

[0151] Drive mechanism 152

[0152] Transmission mechanism 153

[0153] High-efficiency erosion corrosion testing system 20

[0154] First control device 21

[0155] Second control device 22.

Claims

1. A high-efficiency erosion corrosion testing device, characterized in that, include: The test container has a two-tiered planar structure at its bottom, including a platform in the middle and a step at the outer edge, with the plane of the platform above the plane of the step; wherein, the corrosive solution is stored in the recessed area formed by the step, and the height of the corrosive solution is limited to no higher than the horizontal range of the platform; A sample tray, disposed inside the test container, is used to suspend test samples. The sample tray consists of a support structure and a tray body. The tray body has at least one fixing structure for suspending test samples. The at least one fixing structure is arranged with the center of the tray body as the center and at least one radius. The distance from the fixing structure to the center of the tray body is greater than half the length of the platform in the horizontal direction. A container lid for sealing the test container; A drive unit is located below the platform. The connector of the drive unit is at least partially inserted into the interior of the test container and connected to the sample tray, for driving the sample tray to rotate and move up and down inside the test container. A fluid circulation drive device is disposed outside the test container and is used to drive the corrosive solution to move in the opposite direction to the rotation of the sample disk driven by the drive unit; The fluid circulation drive device includes a fluid circulation pump, a drive mechanism, and a transmission mechanism. The fluid circulation pump is connected to the recessed area of ​​the test container through inlet and outlet pipes for circulating the corrosive solution. The drive mechanism is connected to the fluid circulation pump to provide driving force. The transmission mechanism is used to transmit the rotational motion of the drive mechanism to the fluid circulation pump. During the scouring corrosion test, the fluid circulation drive device controls the flow direction and flow rate of the corrosive solution to control the corrosive solution to rotate in the opposite direction to the rotational motion of the sample disk driven by the drive unit, and the test sample is fully exposed in the corrosive solution, while the sample disk does not come into contact with the corrosive solution.

2. The high-efficiency erosion corrosion testing device according to claim 1, characterized in that, The bottom and side surfaces of the step are perpendicular to each other and / or the side surfaces of the step are perpendicular to the platform, or a smooth curved transition is adopted.

3. The high-efficiency erosion corrosion testing device according to claim 1, characterized in that, The support structure consists of a central axis and a plurality of brackets extending outward from the central axis, the brackets extending radially outward to the connection point with the disc body.

4. The high-efficiency erosion corrosion testing device according to claim 1, characterized in that, The fixing structure is a receiving hole that penetrates the disc body; the high-efficiency erosion corrosion testing device also includes a fixing member, which is connected to the test sample and is used to fix one end of the test sample above the receiving hole, and the other end of the test sample passes through the receiving hole and is suspended below the receiving hole.

5. The high-efficiency erosion corrosion testing device according to claim 4, characterized in that, The test sample is detachably connected to the fastener.

6. The high-efficiency erosion corrosion testing device according to claim 4, characterized in that, The receiving hole is composed of a first part and a second part, wherein the shape of the first part matches the shape of the fastener and is used to accommodate at least a portion of the height of the fastener; the shape of the second part matches the shape of the test sample and is used to accommodate at least a portion of the height of the test sample.

7. The high-efficiency erosion corrosion testing device according to claim 1, characterized in that, The surface of the disk is covered by at least one layer of planar structure.

8. A high-efficiency erosion corrosion testing system, characterized in that, include: The high-efficiency erosion corrosion testing device according to any one of claims 1-7; as well as A first control device is used to drive the drive unit in the high-efficiency erosion corrosion testing device.

9. The high-efficiency erosion corrosion testing system according to claim 8, characterized in that, Also includes: The second control device is used to drive the fluid circulation drive device to adjust the flow rate and flow direction of the corrosive solution.

Images