A high-temperature dynamic corrosion test device

Abstract

The utility model relates to a kind of high-temperature dynamic corrosion test devices, including heating furnace, crucible, cover plate, stirring device and sample carrier piece.Crucible is set in heating furnace, for accommodating liquid metal;Cover plate is covered in heating furnace, cover plate is provided with through-hole;Stirring device includes stirring shaft, magnetic sealing assembly and stirring driving part, stirring shaft is rotatably connected to cover plate, one end of stirring shaft passes through through-hole and extends into crucible, stirring driving part is coupled with stirring shaft by magnetic sealing assembly, for driving stirring shaft rotation, magnetic sealing assembly seals the through-hole.Sample carrier piece is set in one end of stirring shaft, to follow stirring shaft rotation.The utility model can improve the sealing property of high-temperature dynamic corrosion test device.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature dynamic corrosion testing technology, specifically to a high-temperature dynamic corrosion testing device. Background Technology

[0002] High-temperature dynamic corrosion testing can simulate the flow of liquid metal in pipelines and various corrosion causes, reproducing real-world operating conditions. Specifically, different flow rates can be simulated by stirring the liquid metal with a stirring shaft, and a seal must be installed at the connection between the stirring shaft and the heating furnace to prevent leakage of high-temperature liquid metal or other liquids.

[0003] However, in related technologies, sealing the connection between the stirring shaft and the heating furnace is achieved through shaft sealing structures such as sealing rings. This presents a risk of leakage of liquids such as liquid metals due to the frictional force between the stirring shaft and the shaft sealing structure when the stirring shaft rotates, resulting in poor sealing performance and safety hazards. Utility Model Content

[0004] To address the problems in the background art, this utility model provides a high-temperature dynamic corrosion testing device to improve the sealing effect of the device and thus enhance its safety.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A high-temperature dynamic corrosion testing device includes a heating furnace, a crucible, a cover plate, a stirring device, and a sample carrier; the crucible is disposed in the heating furnace for containing liquid metal; the cover plate covers the heating furnace and has a through hole; the stirring device includes a stirring shaft, a magnetic sealing assembly, and a stirring drive; the stirring shaft is rotatably connected to the cover plate, one end of the stirring shaft passes through the through hole and extends into the crucible, and the stirring drive is coupled to the stirring shaft through the magnetic sealing assembly for driving the stirring shaft to rotate; the magnetic sealing assembly seals the through hole; the sample carrier is disposed at one end of the stirring shaft to follow the rotation of the stirring shaft.

[0006] The beneficial effects of this utility model are: the stirring drive component is magnetically coupled to the stirring shaft through the magnetic sealing assembly, so that the stirring drive component and the stirring shaft transmit torque through magnetic field coupling. The magnetic sealing assembly does not rub against the stirring shaft, which fundamentally eliminates the risk of wear of the magnetic sealing assembly. This allows the magnetic sealing assembly to more reliably and stably seal the through holes on the cover plate, reduce the risk of leakage, improve the sealing effect, and thus improve safety.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the magnetic sealing assembly includes: an inner magnetic rotor connected to the stirring shaft; an outer magnetic rotor sleeved on the outside of the inner magnetic rotor, the outer magnetic rotor being connected to the stirring drive; and an isolation sleeve located between the outer magnetic rotor and the inner magnetic rotor, sealing the through hole.

[0009] The beneficial effects of adopting the above-mentioned further solution are: the rotation of the stirring drive causes the outer magnetic rotor to rotate, and through the magnetic field coupling of the inner magnetic rotor and the outer magnetic rotor, the inner magnetic rotor and the stirring shaft are driven to rotate, so that the sample carrier rotates synchronously to simulate the high-temperature dynamic corrosion. Since the isolation sleeve does not come into contact with the stirring shaft, the isolation sleeve is not worn, thus it can reliably and stably seal the through hole, thereby improving the sealing effect.

[0010] Furthermore, the high-temperature dynamic corrosion testing device also includes a cooling device arranged around the magnetic sealing assembly. The cooling device includes a liquid cooling channel and a gas cooling channel. The liquid cooling channel is used to introduce coolant, and the gas cooling channel is used to pass cooling gas.

[0011] The beneficial effects of adopting the above-mentioned further solution are: providing dual cooling for the magnetic sealing assembly through liquid cooling channels and gas cooling channels, improving the heat dissipation capacity of the magnetic sealing assembly and stirring drive, reducing the risk of high-temperature damage to the magnetic sealing assembly and stirring drive, and improving the reliability of the device.

[0012] Furthermore, the cooling device includes an inner cylinder and an outer cylinder. The inner cylinder is arranged around the magnetic sealing assembly, and the outer cylinder is sleeved on the inner cylinder. The gap between the outer cylinder and the inner cylinder forms the gas cooling channel. The liquid cooling channel is in contact with the inner cylinder and is located in the gas cooling channel. The outer cylinder is provided with a liquid inlet and a liquid outlet communicating with the liquid cooling channel, and an air inlet and an air outlet communicating with the gas cooling channel.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the liquid cooling channel directly cools the magnetic sealing component, while the gas cooling channel dissipates heat from the liquid cooling channel, so that the liquid cooling channel can continuously and stably cool the magnetic sealing component, thereby improving the heat dissipation efficiency of the liquid cooling channel for the magnetic sealing component.

[0014] Furthermore, the liquid cooling channel spirals upwards along the axial direction of the inner cylinder in a spiral shape.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the liquid cooling channel is spiral-shaped, which can increase the contact area with the inner cylinder, thereby increasing the heat dissipation area of ​​the magnetic sealing component and improving the heat dissipation effect.

[0016] Furthermore, the outer surface of the liquid cooling channel is provided with heat dissipation fins.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the heat dissipation fins can increase the contact area with the cooling gas in the gas cooling channel, so that the liquid cooling channel can continuously and reliably cool the magnetic sealing component, further improving the heat dissipation effect.

[0018] Furthermore, the liquid inlet and the liquid outlet are located on both sides of the outer cylinder along its radial direction and are spaced apart along its axial direction; the air inlet and the air outlet are located on both sides of the outer cylinder wall along its radial direction and are spaced apart along its axial direction, wherein the liquid inlet and the air inlet are located on the same side of the radial direction, and the liquid outlet and the air outlet are located on the same side of the radial direction.

[0019] The beneficial effects of adopting the above-mentioned further scheme are: the liquid inlet and outlet of the liquid cooling channel and the gas inlet and outlet of the gas cooling channel are located on both sides of the outer cylinder along its radial direction and are distributed at intervals along its axial direction, which can extend the flow path of the liquid cooling channel and the gas cooling channel, increase the heat dissipation area, and improve the heat dissipation capacity.

[0020] Furthermore, the sample carrier includes a support and a support plate disposed on the support. The support is connected to the stirring shaft, and the support plate is provided with a plurality of grooves distributed radially thereon for carrying the sample.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that the support plate is provided with multiple grooves for supporting the sample distributed radially. When the support plate rotates, the angular velocity of the sample in the groove is different, which can simulate the corrosion of multiple samples with different flow rates under the same set of tests, thereby improving the experimental efficiency.

[0022] Furthermore, multiple support plates are provided, and the multiple support plates are spaced apart along the length direction of the support. Each support plate is provided with multiple grooves, wherein the length direction of the support coincides with the axis of the stirring shaft.

[0023] The beneficial effect of adopting the above-mentioned further scheme is that it enables the simulation of more samples under the same set of experiments, thereby further improving experimental efficiency.

[0024] Furthermore, a heat insulation component is provided between the crucible and the cover plate.

[0025] The beneficial effect of adopting the above-mentioned further solution is that the heat insulation component can block the high temperature in the crucible from being conducted to the cover plate, thereby reducing the risk of high temperature heat spread. Attached Figure Description

[0026] Figure 1 Schematic diagram of the structure of the high-temperature dynamic corrosion testing device provided in some embodiments of this utility model;

[0027] Figure 2 Provided for some embodiments of this utility model Figure 1 A structural schematic diagram of part A (magnetic sealing assembly);

[0028] Figure 3 This is a schematic diagram of the structure of the carrier plate provided in some embodiments of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 100-High Temperature Dynamic Corrosion Testing Apparatus;

[0031] 10 - Heating furnace;

[0032] 20-Crucible;

[0033] 30 - Cover plate; 31 - Through hole;

[0034] 40-Stirring device; 41-Stirring shaft; 42-Magnetic sealing assembly; 421-Inner magnetic rotor; 422-Outer magnetic rotor; 423-Isolation sleeve; 43-Stirring drive component;

[0035] 50 - Sample carrier; 51 - Support; 52 - Carrier plate; 521 - Groove;

[0036] 60 - Cooling device; 61 - Liquid cooling channel; 611 - Liquid inlet; 612 - Liquid outlet; 62 - Gas cooling channel; 621 - Air inlet; 622 - Air outlet; 63 - Inner cylinder; 64 - Outer cylinder; 65 - Heat dissipation fins;

[0037] 70 - Thermal insulation. Detailed Implementation

[0038] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0039] Reference Figures 1 to 3This utility model provides a high-temperature dynamic corrosion testing device 100, including a heating furnace 10, a crucible 20, a cover plate 30, a stirring device 40, and a sample carrier 50. The crucible 20 is disposed inside the heating furnace 10 and is used to contain liquid metal. The cover plate 30 covers the heating furnace 10 and is provided with a through hole 31. The stirring device 40 includes a stirring shaft 41, a magnetic sealing assembly 42, and a stirring drive 43. The stirring shaft 41 is rotatably connected to the cover plate 30, and one end of the stirring shaft 41 passes through the through hole 31 and extends into the crucible 20. The stirring drive 43 is coupled to the stirring shaft 41 through the magnetic sealing assembly 42 and is used to drive the stirring shaft 41 to rotate. The magnetic sealing assembly 42 seals the through hole 31. The sample carrier 50 is disposed at one end of the stirring shaft 41 to follow the rotation of the stirring shaft 41.

[0040] The stirring drive component 43 is coupled to the stirring shaft 41 through the magnetic sealing assembly 42, so that the stirring drive component 43 and the stirring shaft 41 transmit torque through the magnetic field coupling of the magnetic sealing assembly 42. The two are connected without contact, so that the magnetic sealing assembly 42 is not affected by the rotation of the stirring shaft 41, fundamentally eliminating the risk of wear of the magnetic sealing assembly 42, reducing the possibility of leakage, so that the magnetic sealing assembly 42 can reliably seal, improve the sealing effect, and thus improve safety.

[0041] The heating furnace 10 is used to heat the crucible 20 so that the metal in the crucible 20 is in a liquid state. The heating furnace 10 can be a structure with an opening on one side, and a cover plate 30 can close the opening. The cover plate 30 and the heating furnace 10 form a cavity to accommodate the crucible 20.

[0042] The through hole 31 on the cover plate 30 is for the stirring shaft 41 to pass through. One end of the stirring shaft 41 extends into the crucible 20 and is immersed in the liquid metal. The stirring shaft 41 can be mounted in the through hole of the cover plate 30 via a bearing.

[0043] The magnetic sealing assembly 42 seals the through hole 31 on the cover plate 30 and connects the stirring drive 43 and the stirring shaft 41 via magnetic field coupling. The stirring drive 43 drives the stirring shaft 41 to rotate through the magnetic sealing assembly 42, thereby rotating the sample carrier 50. The sample on the sample carrier 50 rotates at a certain speed, simulating a high-temperature dynamic corrosion process. The sample carrier 50 can hold multiple samples of different types, allowing for the simulation of more samples under the same experimental setup, thus improving experimental efficiency. The stirring drive 43 can be a motor. The motor can be fixed to the cover plate 30 via a mounting bracket.

[0044] In the above scheme, the magnetic sealing assembly 42 may include an inner magnetic rotor 421, an outer magnetic rotor 422 and an isolation sleeve 423. The inner magnetic rotor 421 is connected to the stirring shaft 41; the outer magnetic rotor 422 is sleeved on the outside of the inner magnetic rotor 421 and is connected to the stirring drive 43; the isolation sleeve 423 is located between the outer magnetic rotor 422 and the inner magnetic rotor 421 and seals the through hole 31.

[0045] Both the inner magnetic rotor 421 and the outer magnetic rotor 422 are embedded with permanent magnets (such as neodymium iron boron), which are arranged in a specific polarity to form a strong magnetic field. When the stirring drive 43 (such as a motor) rotates, the outer magnetic rotor 422 rotates synchronously with the stirring drive 43, and the inner magnetic rotor 421 is driven to rotate by magnetic field coupling, so that the stirring shaft 41 and the sample carrier 50 rotate synchronously.

[0046] From the inside to the outside, the inner magnetic rotor 421, the isolation sleeve 423, and the outer magnetic rotor 422 are distributed sequentially. There are gaps between the isolation sleeve 423 and the inner magnetic rotor 421, and between the isolation sleeve 423 and the outer magnetic rotor 422. The isolation sleeve 423 can be made of a non-magnetic material (such as Hastelloy, ceramic, etc.) and can be fixed to the cover plate 30, such as directly fixed to the cover plate 30 through a flange, or indirectly fixed to the cover plate 30.

[0047] The isolation sleeve 423 can isolate the physical space between the outer magnetic rotor 422 and the inner magnetic rotor 421, and completely seal the through hole 31. The isolation sleeve 423 can cover the through hole 31 and be sealed to the cover plate 30, thereby sealing the through hole 31.

[0048] The rotation of the stirring drive 43 causes the outer magnetic rotor 422 to rotate. Through the magnetic field coupling between the inner magnetic rotor 421 and the outer magnetic rotor 422, the inner magnetic rotor 422, the stirring shaft 41, and the bearing component 50 rotate synchronously to simulate high-temperature dynamic corrosion. Since the isolation sleeve 423 does not come into contact with the stirring shaft 41, the isolation sleeve is not worn and can completely seal the through hole 31, thereby improving the sealing reliability.

[0049] In some embodiments, the high-temperature dynamic corrosion testing apparatus 100 further includes a cooling device 60 disposed around the magnetic sealing assembly 42. The cooling device 60 includes a liquid cooling channel 61 for introducing coolant and a gas cooling channel 62 for passing cooling gas. The coolant may be water or other cooling liquids. The cooling gas may be air or other gases.

[0050] The magnetic sealing assembly 42 is provided with dual cooling through the liquid cooling channel 61 and the gas cooling channel 62, which improves heat dissipation capacity, reduces the risk of damage caused by high temperature conduction to the stirring drive 43, and improves the reliability of the device.

[0051] Furthermore, the cooling device 60 may include a sleeve, which includes an inner cylinder 63 and an outer cylinder 64. The inner cylinder 63 is arranged around the magnetic sealing assembly 42, and the outer cylinder 64 is sleeved on the inner cylinder 63. The gap between the outer cylinder 64 and the inner cylinder 63 forms a gas cooling channel 62. The liquid cooling channel 61 is in contact with the inner cylinder 63 and is located in the gas cooling channel 62. The outer cylinder 64 is provided with a liquid inlet 611 and a liquid outlet 612 communicating with the liquid cooling channel 61, and an air inlet 621 and an air outlet 622 communicating with the gas cooling channel 62.

[0052] The cooling device 60 adopts an inner cylinder 63 and an outer cylinder 64 structure, integrating a gas cooling channel 62 and a liquid cooling channel 61. The gas cooling channel 62 can also dissipate heat from the liquid cooling channel 62, so that the liquid cooling channel 62 can continuously cool the magnetic sealing component 42 and improve its heat dissipation capacity.

[0053] In the above scheme, the liquid cooling channel 61 spirals upward along the axial direction of the inner cylinder 63 in a spiral shape.

[0054] This increases the contact area of ​​the inner cylinder 63 of the liquid cooling channel 61, thereby improving the heat dissipation capacity of the magnetic sealing assembly 42.

[0055] In the above scheme, heat dissipation fins 65 are provided on the outer surface of the liquid cooling channel 61.

[0056] Therefore, the heat dissipation fins 65 can increase the contact area with the gas cooling channel 62, thereby better cooling the liquid cooling channel 61, enabling the liquid cooling channel 61 to continuously and reliably cool the magnetic sealing assembly 42, and further improving the heat dissipation capacity.

[0057] In the above scheme, the liquid inlet 611 and the liquid outlet 612 are located on both sides of the outer cylinder 64 along its radial direction and are spaced apart along its axial direction; the air inlet 621 and the air outlet 622 are located on both sides of the outer cylinder 64 along its radial direction and are spaced apart along its axial direction, wherein the liquid inlet 611 and the air inlet 621 are located on the same side of the radial direction, and the liquid outlet 612 and the air outlet 622 are located on the same side of the radial direction.

[0058] The liquid inlet and outlet of the liquid cooling channel 61 and the gas inlet and outlet of the gas cooling channel 62 are located on both sides of the outer cylinder 64 along its radial direction, which can extend the flow path of the liquid cooling channel 61 and the gas cooling channel 62, increase the heat dissipation area, and improve the heat dissipation capacity.

[0059] In some embodiments, the sample carrier 50 includes a support 51 and a carrier disk 52 disposed on the support 51. The support 51 is connected to the stirring shaft 41, and the carrier disk 52 is provided with a plurality of grooves 521 distributed radially thereon for carrying the sample.

[0060] As an example, multiple grooves 521 are arranged radially along the support disk 52 as a groove row, and arranged circumferentially along the support disk 52 as multiple groove rows.

[0061] The support plate 52 is provided with multiple grooves 521 distributed radially thereon for carrying the sample. When the support plate 52 rotates, the angular velocity of the sample in the groove 521 is different, which can simulate the corrosion of multiple samples with different flow rates under the same set of tests, thereby improving the experimental efficiency.

[0062] In the above scheme, multiple bearing plates 52 are provided, and the multiple bearing plates 52 are spaced apart along the length direction of the support 51. Each bearing plate 52 is provided with multiple grooves 521, wherein the length direction of the support 51 coincides with the axis of the stirring shaft 41.

[0063] This approach allows for the simulation of a wider variety of samples within the same set of experiments, further improving experimental efficiency.

[0064] In some embodiments, a heat insulation element 70 is provided between the crucible 20 and the cover plate 30. The heat insulation element may be made of a high-temperature resistant material.

[0065] The heat insulation component 70 can prevent the high temperature of the crucible 20 from being conducted to the cover plate 30, thereby reducing the risk of high temperature heat spread.

[0066] In the description of this utility model, it should be understood that the terms "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "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 or an electrical connection; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In this utility model, 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," "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 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.

[0069] In the description of this specification, references to terms such as "some embodiments" and "as an example" 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.

[0070] 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.

Claims

1. A high-temperature dynamic corrosion testing device, characterized in that, include: Heating furnace; A crucible, placed inside the heating furnace, is used to contain liquid metal; A cover plate is provided on the heating furnace, and the cover plate is provided with through holes; A stirring device includes a stirring shaft, a magnetic sealing assembly, and a stirring drive. The stirring shaft is rotatably connected to the cover plate. One end of the stirring shaft passes through the through hole and extends into the crucible. The stirring drive is coupled to the stirring shaft through the magnetic sealing assembly and is used to drive the stirring shaft to rotate. The magnetic sealing assembly seals the through hole. A sample carrier is disposed at one end of the stirring shaft to rotate with the stirring shaft.

2. The high-temperature dynamic corrosion testing device according to claim 1, characterized in that, The magnetic sealing assembly includes: An internal magnetic rotor is connected to the stirring shaft; An outer magnetic rotor is sleeved on the outside of the inner magnetic rotor, and the outer magnetic rotor is connected to the stirring drive component; An isolation sleeve is located between the outer magnetic rotor and the inner magnetic rotor, and seals the through hole.

3. The high-temperature dynamic corrosion testing apparatus according to claim 1 or 2, characterized in that, The high-temperature dynamic corrosion testing device also includes: A cooling device is provided around the magnetic sealing assembly. The cooling device includes a liquid cooling channel and a gas cooling channel. The liquid cooling channel is used to introduce coolant, and the gas cooling channel is used to pass cooling gas.

4. The high-temperature dynamic corrosion testing apparatus according to claim 3, characterized in that, The cooling device includes an inner cylinder and an outer cylinder. The inner cylinder is arranged around the magnetic sealing assembly, and the outer cylinder is sleeved on the inner cylinder. The gap between the outer cylinder and the inner cylinder forms the gas cooling channel. The liquid cooling channel is in contact with the inner cylinder and is located in the gap. The outer cylinder is provided with a liquid inlet and a liquid outlet communicating with the liquid cooling channel, and an air inlet and an air outlet communicating with the gas cooling channel.

5. The high-temperature dynamic corrosion testing apparatus according to claim 4, characterized in that, The liquid cooling channel spirals upwards along the axial direction of the inner cylinder in a spiral shape.

6. The high-temperature dynamic corrosion testing apparatus according to claim 4, characterized in that, The outer surface of the liquid cooling channel is provided with heat dissipation fins.

7. The high-temperature dynamic corrosion testing apparatus according to claim 4, characterized in that, The liquid inlet and the liquid outlet are located on both sides of the outer cylinder along its radial direction and are spaced apart along its axial direction. The air inlet and air outlet are located on both sides of the outer cylinder wall along its radial direction and are spaced apart along its axial direction. The liquid inlet and the air inlet are located on the same side of the radial direction, and the liquid outlet and the air outlet are located on the same side of the radial direction.

8. The high-temperature dynamic corrosion testing apparatus according to claim 1 or 2, characterized in that, The sample carrier includes a support and a support plate disposed on the support. The support is connected to the stirring shaft, and the support plate is provided with a plurality of grooves distributed radially thereon for carrying the sample.

9. The high-temperature dynamic corrosion testing apparatus according to claim 8, characterized in that, The support plate is provided in multiple ways, and the multiple support plates are spaced apart along the length direction of the support. Each support plate is provided with multiple grooves, wherein the length direction of the support coincides with the axis of the stirring shaft.

10. The high-temperature dynamic corrosion testing apparatus according to claim 1 or 2, characterized in that, A heat insulation element is provided between the crucible and the cover plate.

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