Magnetic rotary self-cleaning inter-stage heat exchanger

Abstract

The application provides a magnetic rotary self-cleaning interstage heat exchanger, which comprises a shell and a cleaning assembly, the shell has a cavity for filling amine liquid, the cleaning assembly comprises a driving part and a cleaning part, the cleaning part comprises a first transmission part, a second transmission part and a cleaning piece, the first transmission part is connected with an output shaft of the driving part, the second transmission part is arranged in the cavity, the first transmission part and the second transmission part are coupled through magnetic force, the cleaning piece is connected with the second transmission part and located in the cavity, the driving part is used for driving the first transmission part to rotate, the first transmission part rotates and drives the second transmission part and the cleaning piece to rotate, so that the amine liquid is agitated. The magnetic rotary self-cleaning interstage heat exchanger has the advantages of good cleaning effect.

Description

Technical Field

[0001] This invention belongs to the technical field of heat exchangers, specifically, it relates to a magnetic rotary self-cleaning interstage heat exchanger. Background Technology

[0002] In carbon capture systems, amine solutions, used as absorbents, easily form sticky deposits on heat exchange surfaces. These deposits not only affect heat exchange efficiency but also lead to frequent equipment maintenance. Related technologies employing mechanical cleaning methods require system shutdown and disassembly, causing system downtime and impacting overall efficiency and economy. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention propose a magnetic rotary self-cleaning interstage heat exchanger, which has the advantage of good cleaning effect.

[0005] The magnetic rotary self-cleaning interstage heat exchanger of the present invention comprises:

[0006] A housing having a cavity for filling with amine solution; A cleaning assembly includes a driving component and a cleaning component. The cleaning component includes a first transmission component, a second transmission component, and a cleaning component. The first transmission component is connected to the output shaft of the driving component. The second transmission component is disposed within the cavity. The first transmission component and the second transmission component are magnetically coupled. The cleaning component is connected to the second transmission component and located within the cavity. The driving component drives the first transmission component to rotate. The rotation of the first transmission component drives the second transmission component and the cleaning component to rotate, thereby agitating the amine solution.

[0007] The magnetic rotary self-cleaning interstage heat exchanger of the present invention uses a power transmission method that does not require a mechanical shaft to pass through the equipment housing. A complete, static isolation cover can be set between the active end and the driven end of the driving component to completely seal the inside of the heat exchanger that processes amine liquid.

[0008] Therefore, the magnetic rotary self-cleaning interstage heat exchanger of the present invention can eliminate media leakage, protect the environment and equipment; it also prevents oxygen intrusion, that is, oxygen is the main factor leading to amine degradation and aggravating equipment corrosion. External air (oxygen) cannot enter the system, cutting off this corrosion path at the source; the drive component adopts non-mechanical contact, which also avoids the damage to the surface passivation film caused by friction and the resulting wear corrosion, thereby forming a stable rotating magnetic field and ensuring smooth operation.

[0009] In some embodiments, the first transmission member and the second transmission member constitute a magnetic coupling.

[0010] In some embodiments, the cleaning assembly further includes an enlarged disc, a first end of which is connected to the second transmission member, and a second end of which is connected to the cleaning member, wherein the extending direction of the cleaning member is consistent with the extending direction of the housing.

[0011] In some embodiments, the projected area of ​​the enlarged disk is larger than the projected area of ​​the second transmission member in a plane orthogonal to the axial direction of the housing.

[0012] In some embodiments, there are multiple cleaning elements, which are circumferentially spaced along the axial direction of the housing and are arranged adjacent to the edge of the enlarged disk.

[0013] In some embodiments, a first end of the cleaning member is connected to the enlarged disk, and a second end of the cleaning member is spaced apart from the bottom wall of the housing.

[0014] In some embodiments, in a plane orthogonal to the axial direction of the housing, the projected area of ​​the enlarged disk is 70% to 90% of the projected area of ​​the bottom wall of the housing.

[0015] In some embodiments, the cleaning component has a threaded groove, the extension direction of which is generally consistent with the extension direction of the cleaning component.

[0016] In some embodiments, in two adjacent cleaning components, the threads on the two cleaning components rotate in opposite directions.

[0017] In some embodiments, the magnetic rotary self-cleaning interstage heat exchanger of the present invention further includes an adjustment component, the adjustment component including a detection component and a speed control component, the housing having an outlet, the detection component being disposed at the outlet for detecting the amine liquid flow rate at the outlet, the detection component, the speed control component and the drive component being electrically connected in sequence, the speed control component being used to receive the flow rate data transmitted by the detection component and control the rotational speed of the drive component according to the change in the flow rate data. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the magnetic rotary self-cleaning interstage heat exchanger of the present invention.

[0019] Figure label: 1. Shell, 11. Cavity 2. Cleaning component; 21. Drive component; 22. Cleaning component; 222. Second transmission component; 223. Cleaning component; 2231. Threaded groove; 224. Isolation cover; 225. Enlarged disc. 3. Adjustment component; 31. Detection component; 32. Speed ​​control component. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. 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.

[0021] like Figure 1 As shown, the magnetic rotary self-cleaning interstage heat exchanger of the present invention includes a housing 1 and a cleaning component 2.

[0022] The housing 1 has a cavity 11 for filling with amine solution. The cleaning assembly 2 includes a driving component 21 and a cleaning component 22. The cleaning component 22 includes a first transmission component, a second transmission component 222, and a cleaning component 223. The first transmission component is connected to the output shaft of the driving component 21. The second transmission component 222 is disposed in the cavity 11. The first transmission component and the second transmission component 222 are magnetically coupled. The cleaning component 223 is connected to the second transmission component 222 and is located in the cavity 11. The driving component 21 drives the first transmission component to rotate. The rotation of the first transmission component drives the second transmission component 222 and the cleaning component 223 to rotate, thereby agitating the amine solution.

[0023] Specifically, such as Figure 1 As shown, the shell 1 constitutes the main structure of the heat exchanger, with an internal cavity 11 for filling the amine liquid medium. The cavity 11 is a closed environment, directly contacting the amine liquid. The drive component 21 can be a motor or other rotational power source, and is located outside the shell 1. Its output shaft is directly connected to the first transmission component to provide rotational power. The first transmission component is fixed on the output shaft of the drive component 21 and includes a permanent magnet or electromagnetic structure, serving as the active end of magnetic coupling. The second transmission component 222 is placed inside the cavity 11 of the shell 1 and has no physical contact with the first transmission component, but forms the driven end of magnetic coupling through magnetic field interaction (such as permanent magnets or electromagnetic induction).

[0024] The cleaning component 223 is mounted on the second transmission component 222 (e.g., via a connecting rod or bracket) and rotates synchronously with the second transmission component 222 within the cavity 11. The cleaning component 223 can be a blade, brush, or scraper structure and is directly immersed in the amine solution.

[0025] Optionally, the first transmission member and the second transmission member 222 constitute a magnetic coupling.

[0026] Understandably, the first transmission component and the second transmission component 222 transmit torque through magnetic field interaction, forming a magnetic coupling. They are completely separated by the wall of the housing 1 (or a dedicated isolation cover 224), achieving physical isolation. The isolation cover 224 is a statically sealed structure, isolating the cavity 11 from the external environment.

[0027] In other words, magnetic coupling eliminates the need for a mechanical shaft to penetrate the housing 1, avoiding the risk of amine leakage at traditional shaft seals. The isolation cover 224 maintains a complete seal, preventing media leakage, protecting the environment (amine may be toxic or corrosive), reducing material loss, and lowering maintenance costs.

[0028] In other words, the power transmission of the magnetic rotary self-cleaning interstage heat exchanger of the present invention does not require a mechanical shaft to pass through the equipment housing 1. A complete, static isolation cover 224 can be set between the active end and the driven end of the drive component 21 to completely seal the interior of the heat exchanger that processes amine liquid.

[0029] Therefore, the magnetic rotary self-cleaning interstage heat exchanger of the present invention can eliminate media leakage, protect the environment and equipment, and prevent oxygen intrusion. Oxygen is the main factor that causes amine liquid degradation and aggravates equipment corrosion. External air (oxygen) cannot enter the system, cutting off this corrosion path at the source. The drive component 21 adopts a non-mechanical contact method, which also avoids the damage to the surface passivation film caused by friction and the resulting wear corrosion, thereby forming a stable rotating magnetic field and ensuring smooth operation.

[0030] In some embodiments, the cleaning component 2 further includes an enlarged disk 225, the first end of which is connected to the second transmission member 222, and the second end of which is connected to the cleaning member 223, the extending direction of which is consistent with the extending direction of the housing 1.

[0031] Specifically, such as Figure 1 As shown, the first end of the enlarged disk 225 is rigidly fixedly connected to the drive shaft of the second transmission member 222 (or directly to its rotor body), so that the enlarged disk 225 serves as a direct extension of the second transmission member 222 and rotates synchronously and coaxially with the second transmission member 222.

[0032] The cleaning element 223 is mounted on the second end of the enlarged plate 225 (such as on the radial edge of the enlarged plate 225 or on a specific mounting position). The extending direction of the cleaning element 223 is the same as the extending direction of the housing 1. For example, if the housing 1 is a horizontal cylindrical shape (such as the outer shell of a shell-and-tube heat exchanger), then the cleaning element 223 (such as a long scraper or agitator arm) also extends in a horizontal direction.

[0033] Understandably, the enlarged disc 225, as a rigid transition structure, integrates and rebalances the potentially unevenly distributed fluid and mechanical forces transmitted from several cleaning components 223 within its own structure before transmitting them to the second transmission component 222 in a more stable torque form. This protects the core transmission function of the magnetic coupling, making its workload smoother, reducing the risk of "rotation loss" due to sudden load changes or eccentricity, and ensuring long-term reliable and stable operation. Simultaneously, the enlarged disc 225 itself facilitates symmetrical layout design for multiple cleaning components 223, further optimizing dynamic balance.

[0034] Furthermore, the enlarged plate 225 can serve as a standardized mounting platform for the cleaning component 223. That is, different sizes of the enlarged plate 225 can be designed according to the diameter of different models of heat exchanger shells 1, while maintaining the standardization of the second transmission component 222 (magnetic rotor part). Similarly, the cleaning component 223 can also be modularly replaced according to different process requirements (such as emphasizing stirring or emphasizing scraping). This greatly improves the product's serialization design capabilities and the speed of response to customer customization needs.

[0035] Preferably, in a plane orthogonal to the axial direction of the housing 1, the projected area of ​​the enlarged disk 225 is greater than the projected area of ​​the second transmission member 222.

[0036] Understandably, the large-area design of the enlarged disc 225 allows the cleaning element 223 to be installed away from the center of rotation and close to the inner wall of the housing 1, thereby significantly enhancing the scraping force and agitation intensity at the end of the cleaning element 223 without increasing the upper limit of the magnetic drive system load. This enables the cleaning element 223 to effectively remove more stubborn deposits.

[0037] In other words, due to the increased area of ​​the enlarged disk 225, the diameter of the rotation trajectory circle of the cleaning component 223 mounted on its edge is also larger. When the cleaning component 223 rotates with the transmission component, it can generate a larger rotation radius, thereby ensuring a wider sweeping coverage area within the annular cross-section.

[0038] In some embodiments, there are multiple cleaning elements 223, which are arranged circumferentially spaced along the axial direction of the housing 1, and the cleaning elements 223 are arranged adjacent to the edge of the enlarged disk 225.

[0039] Specifically, such as Figure 1As shown, at the second end of the enlarged disk 225, a plurality of cleaning components 223 are arranged at equal or unequal angles in the circumferential direction (i.e., around the axis) of the enlarged disk 225. For example, when three cleaning components 223 are installed on the enlarged disk 225, they may be arranged at 120° intervals. All cleaning components 223 are arranged adjacent to the edge of the enlarged disk 225 to ensure that the working radius of each cleaning component 223 reaches or approaches its maximum value, i.e., close to the inner wall of the housing 1.

[0040] Understandably, the circumferentially spaced arrangement of multiple cleaning elements 223 ensures that at any given moment during rotation, multiple cleaning elements 223 are in contact with the heat exchange surface or agitating the fluid. As the rotation progresses, the trajectories of these spaced cleaning elements 223 overlap and interweave, ultimately forming a continuous and dense agitation zone in the circumferential direction, thereby eliminating cleaning blind spots within the heat exchanger.

[0041] In some embodiments, the first end of the cleaning member 223 is connected to the enlarged disk 225, and the second end of the cleaning member 223 is spaced apart from the bottom wall of the housing 1.

[0042] Specifically, such as Figure 1 As shown, the second end (working end) of the cleaning component 223 does not directly abut or contact the bottom wall, but maintains a specific gap with it. This ensures that when the cleaning component 223 rotates, the trajectory swept by its outermost end is a virtual cylindrical surface parallel to the bottom wall, with an annular gap always existing between them.

[0043] Understandably, during operation, the equipment may experience slight relative deformation or displacement between the housing 1 and the internal rotating components due to temperature changes (thermal expansion and contraction), pressure deformation, or installation errors. If the cleaning component 223 is in contact with the bottom wall or the gap is too small, this deformation will immediately cause the end of the cleaning component 223 to collide, scrape, or jam against the bottom wall.

[0044] This gap allows for effective tangential flow and moderate turbulence on the bottom surface. This prevents solid particles from settling and accumulating in the flat bottom area (forming a sludge layer) while ensuring that the fluid in this area mixes well with the rest of the fluid, avoiding dead zones in terms of temperature or concentration.

[0045] Preferably, in a plane orthogonal to the axial direction of the housing 1, the projected area of ​​the enlarged disk 225 is 70% to 90% of the projected area of ​​the bottom wall of the housing 1.

[0046] Understandably, the annular gap between the enlarged disk 225 and the shell wall is the core channel for the circulation of amine liquid. If the gap is too small, it will drastically increase the local flow velocity and pressure drop, leading to a significant increase in pumping energy consumption; or it may cause fluid blockage or "water hammer" effect, especially when the amine liquid contains small particles; it is also not conducive to fluid exchange before and after the disk, and may form a flow dead zone.

[0047] In other words, by controlling the proportion below 90%, sufficient flow area is ensured in the annular flow channel (at least 10% of the cross-sectional area). This allows the amine liquid to bypass the enlarged disk 225 relatively smoothly, keeping the additional pressure drop of the system within a reasonable and economical range, and avoiding excessive energy consumption due to the self-cleaning function.

[0048] In some embodiments, the cleaning component 223 has a threaded groove 2231, the extension direction of which is generally consistent with the extension direction of the cleaning component 223.

[0049] Specifically, such as Figure 1 As shown, the cleaning component 223 is a cylindrical rod with continuous, helical grooves machined on its working surface (typically the side in contact with the fluid). This is similar to the threaded portion of a "screw" or "threaded rod". The extension direction of the threaded groove 2231 (i.e., the direction of the helix) is generally consistent with the extension direction of the cleaning component 223 (i.e., the axial direction of the housing 1).

[0050] Understandably, when the cleaning component 223 with axial threaded grooves 2231 rotates with the enlarged disk 225, the cleaning component 223 as a whole revolves around the axis of the housing 1, causing extensive agitation and circumferential mixing of the fluid. Due to the spiral grooves on the surface of the cleaning component 223, shear forces are generated between the channels and the relatively stationary fluid when it rotates.

[0051] In other words, as the threaded groove 2231 rotates, it generates a series of regular vortices and secondary flows within and behind the groove. These micro-vortices have two functions: first, they can penetrate deep into the micro-pits and crevices of the surface, disturbing the deposited particles; second, when the cleaning component 223 sweeps over the deposited soft grime, this vortex structure can generate more complex fluid forces, which helps to peel off the deposits in whole pieces rather than simply pushing them, resulting in higher cleaning efficiency.

[0052] Preferably, in two adjacent cleaning parts 223, the threads 2231 on the two cleaning parts 223 have opposite directions of rotation.

[0053] Understandably, the number of cleaning components 223 is an even number, such as 4, 6, or 8 cleaning components 223 evenly spaced along the circumference of the enlarged disk 225. On adjacent cleaning components 223, the threaded grooves 2231 have opposite directions of rotation. For example, in the case of 4 cleaning components 223, the possible rotation sequence is: right-handed, left-handed, right-handed, left-handed.

[0054] When this array of alternating rotations begins to rotate, each cleaning element 223 still functions as an independent micro axial pump, but due to the opposite rotation, the microscopic direction of the axial pumping force they generate is opposite in adjacent regions.

[0055] In other words, the spiral groove can induce fluid rotation and secondary flow, creating a lateral scouring action that directly and physically impacts fouling deposits, eliminating the need for shutdown chemical cleaning, reducing labor costs, maintenance costs, and environmental impact. Turbulence increases the fluid velocity gradient near the pipe wall, generating higher shear stress, which helps to peel off adhered fouling. Through intense scouring and shearing, the adhesion of viscous substances such as amines to the heat exchange surface is reduced. Furthermore, turbulent disturbance disrupts the thermal and concentration boundary layers, improving heat and mass transfer efficiency, thereby reducing fouling formation. Turbulence enhances heat exchange between the fluid and the heat exchanger, offsetting heat transfer attenuation caused by fouling.

[0056] In some embodiments, the magnetic rotary self-cleaning interstage heat exchanger of the present invention further includes an adjustment component 3, which includes a detection component 31 and a speed control component 32. The housing 1 has an outlet, and the detection component 31 is disposed at the outlet to detect the amine liquid flow rate at the outlet. The detection component 31, the speed control component 32, and the drive component 21 are electrically connected in sequence. The speed control component 32 is used to receive the flow rate data transmitted by the detection component 31 and control the rotational speed of the drive component 21 according to the change in the flow rate data.

[0057] Specifically, such as Figure 1 As shown, the monitoring component is installed on the amine outlet pipe of the housing 1 to detect the flow rate of the amine liquid at the outlet in real time and online. The monitoring component can be a pressure sensor, ultrasonic flow meter, electromagnetic flow meter, or turbine flow meter, etc., and must possess characteristics such as resistance to amine liquid corrosion, high accuracy, and fast response.

[0058] The speed control unit 32 receives real-time flow velocity signals (electrical or digital signals) from the detection unit 31. It has a built-in or programmed control algorithm (such as PID control or fuzzy control) that can perform calculations and decisions based on the received flow velocity data and its changing trends. It can also generate control signals and send them to the drive unit 21.

[0059] The drive component 21 adjusts the speed of its output shaft in real time according to the control signal sent by the speed regulating component 32, thereby changing the rotational speed of the array of the first transmission component, the second transmission component 222, the enlarged disk 225 and the cleaning component 223.

[0060] Understandably, during the system design or commissioning phase, a target outlet flow rate is set according to process requirements. The detection component 31 continuously measures the actual outlet flow rate and transmits the data to the speed control component 32. When the fouling layer inside the heat exchanger thickens, leading to a reduction in the effective cross-sectional area of ​​the flow channel and an increase in flow resistance, the outlet flow rate will decrease while the inlet pressure remains constant. The speed control component 32 then instructs the drive component 21 to increase its rotational speed. This causes the cleaning element array 223 to rotate faster, generating stronger shearing, pumping, and turbulence, actively enhancing the online cleaning effort to remove nascent fouling and restore flow channel patency. This ultimately restores the heat exchanger outlet flow rate to the target outlet flow rate.

[0061] In other words, by monitoring the pressure difference in real time, the heat exchange system achieves closed-loop control, ensuring that the heat exchanger always operates in an optimal clean state. When the pressure difference increases: the thicker fouling layer reduces the cross-sectional area of ​​the flow channel, increases fluid friction loss and local resistance, leading to an increase in the inlet and outlet pressure difference. This indicates an increase in fouling accumulation. At this time, the speed control component 32 will determine that the fouling thickness is large and automatically increase the rotation speed of the cleaning component 223 (via a variable frequency motor) to enhance centrifugal force and flushing effect, removing the fouling. When the pressure difference decreases: the flow resistance of the cleaned heat exchange surface is smaller, and the pressure difference decreases. This indicates a decrease in fouling accumulation. The speed control component 32 will correspondingly reduce the rotation speed to save energy and avoid over-cleaning.

[0062] In summary, the magnetic rotary self-cleaning interstage heat exchanger of the present invention has the following effects: Active swirling disturbance and boundary layer thinning (i.e., the core enhancement mechanism of this design at the basic heat transfer level): The rotation of the cleaning component and the spiral grooves on its surface induce strong swirling and secondary flows in the flowing amine solution. These dynamic eddies effectively penetrate and break up the fluid boundary layer that adheres tightly to the pipe wall and has the greatest heat transfer resistance, significantly reducing its thickness.

[0063] According to Newton's law of cooling The thinning of the boundary layer directly leads to a significant increase in the heat transfer coefficient h. This means that even under the same operating conditions and cleanliness as conventional heat exchangers, this scheme can achieve more efficient energy exchange. Its function is similar to continuous microscopic "stirring" of the fluid, greatly enhancing the convective heat transfer efficiency between the fluid and the pipe wall.

[0064] Dynamically inhibits scaling and ensures long-term high-efficiency operation (this mechanism directly addresses the frequent scaling problems caused by amine solutions and degradation products in carbon capture systems): Fouling deposits on heat exchange surfaces form an insulating layer, resulting in significant fouling thermal resistance, a major cause of efficiency degradation in traditional heat exchangers. Eliminating this fouling thermal resistance maintains long-term stable heat exchange. Through the continuous dynamic action of rotational centrifugal force and induced turbulence, fouling deposition and thickening are inhibited at the source. This ensures that the heat exchange surface remains close to its clean design condition throughout the entire operating cycle, avoiding heat transfer efficiency degradation caused by fouling and guaranteeing long-term, stable, and high-performance system output.

[0065] Synergistic effect of flow field and temperature field homogenization (the overall rotating design brings about a synergistic effect of temperature homogenization): The ring-shaped cleaning components rotate synchronously, forcing the shell-side fluid to be thoroughly mixed within the flow cross-section. This effectively eliminates flow "dead zones," temperature "hot spots," or "cold spots" commonly found in traditional heat exchangers, optimizing the flow and temperature fields.

[0066] Furthermore, a more uniform flow field and temperature distribution result in a greater effective heat transfer temperature difference across the entire heat exchange surface ( This allows for more efficient utilization of heat exchangers, macroscopically improving their overall performance, reducing localized thermal stress, extending equipment lifespan, and increasing the utilization rate of heat transfer temperature differences.

[0067] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a connection that allows communication between them; 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 invention according to the specific circumstances.

[0070] 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.

[0071] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the 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.

[0072] 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 magnetic rotary self-cleaning interstage heat exchanger, characterized in that, include: A housing having a cavity for filling with amine solution; A cleaning assembly includes a driving component and a cleaning component. The cleaning component includes a first transmission component, a second transmission component, and a cleaning component. The first transmission component is connected to the output shaft of the driving component. The second transmission component is disposed within the cavity. The first transmission component and the second transmission component are magnetically coupled. The cleaning component is connected to the second transmission component and located within the cavity. The driving component drives the first transmission component to rotate. The rotation of the first transmission component drives the second transmission component and the cleaning component to rotate, thereby agitating the amine solution.

2. The magnetic rotary self-cleaning interstage heat exchanger according to claim 1, characterized in that, The first transmission component and the second transmission component constitute a magnetic coupling.

3. The magnetic rotary self-cleaning interstage heat exchanger according to claim 1, characterized in that, The cleaning assembly further includes an enlarged disc, a first end of which is connected to the second transmission member, and a second end of which is connected to the cleaning component. The extending direction of the cleaning component is consistent with the extending direction of the housing.

4. The magnetic rotary self-cleaning interstage heat exchanger according to claim 3, characterized in that, In a plane orthogonal to the axial direction of the housing, the projected area of ​​the enlarged disk is greater than the projected area of ​​the second transmission component.

5. The magnetic rotary self-cleaning interstage heat exchanger according to claim 4, characterized in that, There are multiple cleaning components, which are arranged circumferentially at intervals along the axial direction of the housing and are arranged adjacent to the edge of the enlarged disk.

6. The magnetic rotary self-cleaning interstage heat exchanger according to claim 5, characterized in that, The first end of the cleaning component is connected to the enlarged disk, and the second end of the cleaning component is spaced apart from the bottom wall of the housing.

7. The magnetic rotary self-cleaning interstage heat exchanger according to claim 6, characterized in that, In a plane orthogonal to the axial direction of the housing, the projected area of ​​the enlarged disk is 70% to 90% of the projected area of ​​the bottom wall of the housing.

8. The magnetic rotary self-cleaning interstage heat exchanger according to claim 5, characterized in that, The cleaning component has a threaded groove, the extension direction of which is generally consistent with the extension direction of the cleaning component.

9. The magnetic rotary self-cleaning interstage heat exchanger according to claim 8, characterized in that, In two adjacent cleaning components, the threads on the two cleaning components rotate in opposite directions.

10. The magnetic rotary self-cleaning interstage heat exchanger according to any one of claims 1-9, characterized in that, It also includes an adjustment component, which includes a detection component and a speed control component. The housing has an outlet, and the detection component is located at the outlet to detect the flow rate of the amine liquid at the outlet. The detection component, the speed control component, and the drive component are electrically connected in sequence. The speed control component is used to receive the flow rate data transmitted by the detection component and control the rotational speed of the drive component according to the change in the flow rate data.

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