Heat and mass transfer device and carbon capture system

Abstract

The utility model provides a heat and mass transfer device and a carbon capture system. The heat and mass transfer device comprises a shell, a first flowing space and a second flowing space which are isolated from each other are formed in the shell, the first flowing space is used for allowing a low-temperature side medium to flow, and the second flowing space is used for allowing a high-temperature side medium to flow, so that the low-temperature side medium and the high-temperature side medium exchange heat; the hydrophobic coating is arranged on the inner wall of the first flowing space and is used for enabling bubbles separated out by the low-temperature side medium in the first flowing space to adhere to the hydrophobic coating. In the heat exchange process of an absorbent rich solution from an absorption tower and an absorbent barren solution from a regeneration tower in the heat and mass transfer device, carbon dioxide gas separated out from the absorbent rich solution due to temperature rise can be attached to the hydrophobic coating in the form of initial bubbles, so that the carbon dioxide gas becomes a nucleation point of the subsequently separated carbon dioxide gas; and the carbon dioxide precipitation efficiency of the carbon capture system is integrally improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange technical field especially relates to a heat and mass transfer device and carbon capture system. BACKGROUND

[0002] For the flue gas generated in the industrial production process, the flue gas is usually treated by carbon capture process, and the carbon capture process flow is mainly as follows: the flue gas after pretreatment is input into the absorption tower through the flue, and the lean liquid of the absorbent is used to react with the carbon dioxide in the flue gas. The rich liquid of the absorbent absorbing carbon dioxide is sent into the regeneration tower, and the carbon dioxide is released in the regeneration tower, and then the carbon dioxide is stored or utilized, and the lean liquid of the absorbent after releasing carbon dioxide is sent back to the absorption tower for recycling. SUMMARY

[0003] An object of the utility model is to provide a heat and mass transfer device and carbon capture system which can improve the carbon dioxide resolution efficiency to a certain extent.

[0004] In particular, the utility model provides a heat and mass transfer device, which comprises:

[0005] A shell, which is internally formed with a first flow space and a second flow space isolated from each other, the first flow space is used for the flow of low-temperature side medium, and the second flow space is used for the flow of high-temperature side medium, so that the low-temperature side medium and the high-temperature side medium are heat exchanged; and

[0006] A hydrophobic coating, which is arranged on the inner wall of the first flow space and is used for the attachment of bubbles resolved from the low-temperature side medium in the first flow space.

[0007] Optionally, the shell is provided with an exhaust port, which communicates with the first flow space and is used for exhausting the gas in the first flow space.

[0008] Optionally, the heat and mass transfer device comprises at least one heat exchange plate, the heat exchange plate is arranged in the shell, two sides of the heat exchange plate constitute the first flow space and the second flow space respectively, and the hydrophobic coating is arranged on the side of the heat exchange plate facing the first flow space.

[0009] Optionally, the heat and mass transfer device comprises a plurality of heat exchange plates, and the plurality of heat exchange plates are distributed at intervals in the shell, so that a plurality of first flow spaces and a plurality of second flow spaces are formed in a staggered distribution along the distribution direction of the plurality of heat exchange plates.

[0010] Optionally, an exhaust area is formed inside the housing, the first flow spaces and the second flow spaces are distributed in a transverse direction, and the exhaust area is located on a top side of the first flow spaces and the second flow spaces, and the exhaust port communicates with the first flow spaces via the exhaust area.

[0011] Optionally, a sealing top plate is arranged on the top of the first flow spaces and the second flow spaces, for separating the first flow spaces, the second flow spaces and the exhaust area, and the sealing top plate on the top of the first flow spaces is made of a waterproof and breathable material.

[0012] Optionally, the heat and mass transfer device comprises a first pipe and a second pipe, the first pipe and the second pipe pass through all the heat exchange plates in the distribution direction of the heat exchange plates, the first pipe has openings communicating with all the first flow spaces, the first pipe is used for conveying low-temperature side medium to the first flow spaces, the second pipe has openings communicating with all the second flow spaces, and the second pipe is used for conveying high-temperature side medium to the second flow spaces; and / or,

[0013] The heat and mass transfer device comprises a third pipe and a fourth pipe, the third pipe and the fourth pipe pass through all the heat exchange plates in the distribution direction of the heat exchange plates, the third pipe has openings communicating with all the first flow spaces, the third pipe is used for flowing out low-temperature side medium in the first flow spaces, the fourth pipe has openings communicating with all the second flow spaces, and the fourth pipe is used for flowing out high-temperature side medium in the second flow spaces.

[0014] Optionally, the side of the heat exchange plate provided with the hydrophobic coating is provided with a plurality of recesses or protrusions.

[0015] Optionally, the thickness of the hydrophobic coating is set to be between 5 microns and 15 microns.

[0016] In another aspect of the present application, a carbon capture system is also provided, comprising:

[0017] An absorption tower for capturing carbon dioxide by using lean liquid;

[0018] A regeneration tower for desorbing carbon dioxide in rich liquid; and

[0019] According to the heat and mass transfer device in any one of the above aspects, the heat and mass transfer device is arranged between the absorption tower and the regeneration tower, and is used for directly or indirectly receiving rich liquid generated by the absorption tower and lean liquid generated by the regeneration tower, so as to realize heat exchange.

[0020] The heat and mass transfer device and the carbon capture system improve the carbon dioxide precipitation efficiency in the heat and mass transfer device, that is, the heat and mass transfer device can also realize the carbon dioxide precipitation work outside the regeneration tower, and thus the carbon dioxide precipitation efficiency of the carbon capture system is improved as a whole.

[0021] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] Some embodiments of the present application will now be described in detail with reference to the drawings, which are provided by way of example and are not intended to limit the present application. Like reference numerals refer to like elements throughout the drawings. It should be noted that the drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 is a schematic diagram of a carbon capture system according to an embodiment of the present application;

[0024] Figure 2 is a first schematic cross-sectional view of a heat and mass transfer device according to an embodiment of the present application;

[0025] Figure 3 is a schematic cross-sectional view of a part of a heat and mass transfer device according to an embodiment of the present application;

[0026] Figure 4 is a second schematic cross-sectional view of a heat and mass transfer device according to an embodiment of the present application;

[0027] Figure 5 is a schematic cross-sectional view of another part of a heat and mass transfer device according to an embodiment of the present application;

[0028] Figure 6 is a schematic diagram of a heat exchange plate of a heat and mass transfer device according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] Those skilled in the art shall understand that the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments of the utility model, and the part of the embodiments are intended to explain the technical principles of the utility model, rather than limit the protection scope of the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by those skilled in the art without creative labor shall still fall within the protection scope of the utility model.

[0030] In the description of the utility model, it shall be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] Further, it shall be further explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" shall be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, and can also be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] As Figures 1 to 5 shown, in one embodiment, the carbon capture system comprises an absorption tower 100, a regeneration tower 200 and a heat and mass transfer device 300. The absorption tower 100 is used to capture carbon dioxide by using lean liquid. The regeneration tower 200 is used to precipitate carbon dioxide in rich liquid. The heat and mass transfer device 300 is arranged between the absorption tower 100 and the regeneration tower 200. The heat and mass transfer device 300 is used to directly or indirectly receive the rich liquid generated by the absorption tower 100 and the lean liquid generated by the regeneration tower 200, so as to realize heat exchange. In other words, the heat and mass transfer device 300 is a heat exchange device.

[0033] Referring to Figures 1 to 5As shown, specifically, the absorption tower 100 receives flue gas inside, and the absorption tower 100 has a spraying device spraying absorbent lean solution inside the absorption tower 100, the sprayed absorbent lean solution reacts with the flue gas, absorbs carbon dioxide in the flue gas, and the absorbent lean solution after absorbing carbon dioxide becomes absorbent rich solution. The absorbent rich solution generated by the absorption tower 100 needs to be transported to the regeneration tower 200, high-temperature steam is introduced into the regeneration tower 200, under the action of high-temperature steam, carbon dioxide in the absorbent rich solution is precipitated into the regeneration tower 200, the absorbent rich solution becomes absorbent lean solution, and the precipitated carbon dioxide also flows out of the regeneration tower 200. The collection and storage of the carbon dioxide flowing out of the regeneration tower 200 can realize the recovery of carbon dioxide in the flue gas.

[0034] Referring to Figures 1 to 5 As shown, the heat and mass transfer device 300 includes a shell 310, the shell 310 is formed with a first flow space 311 and a second flow space 312 which are isolated from each other inside, the first flow space 311 is used for the flow of low-temperature-side medium, and the second flow space 312 is used for the flow of high-temperature-side medium, so that the low-temperature-side medium and the high-temperature-side medium exchange heat. A hydrophobic coating 320 is arranged on the inner wall of the first flow space 311 for the attachment of bubbles of the low-temperature-side medium in the first flow space 311.

[0035] Referring to Figures 1 to 5 As shown, specifically, the low-temperature-side medium refers to the one with lower temperature of the two heat exchange media in the heat and mass transfer device 300, and the high-temperature-side medium refers to the one with higher temperature of the two heat exchange media in the heat and mass transfer device 300, that is, the low-temperature-side medium absorbs heat from the high-temperature-side medium. The first flow space 311 of the heat and mass transfer device 300 receives the absorbent rich solution of the absorption tower 100, and the second flow space 312 receives the absorbent lean solution of the regeneration tower 200, that is, the absorbent rich solution from the absorption tower 100 is the low-temperature-side medium, and the absorbent lean solution from the regeneration tower 200 is the high-temperature-side medium. The absorbent rich solution from the absorption tower 100 and the absorbent lean solution from the regeneration tower 200 exchange heat in the heat and mass transfer device 300, so that the temperature of the absorbent rich solution from the absorption tower 100 is increased, thereby improving the resolution efficiency of the absorbent rich solution after entering the regeneration tower 200.

[0036] Continuing to refer to Figures 1 to 5 As shown, because the absorbent rich solution absorbs the heat of the absorbent lean solution, the temperature increase will to some extent cause the absorbent rich solution to precipitate carbon dioxide gas. Because the hydrophobic coating 320 is arranged on the inner wall of the first flow space 311, the hydrophobic coating 320 is easy to attach bubbles, so that the precipitated carbon dioxide gas is easy to attach to the hydrophobic coating 320 in the form of bubbles, and the attached bubbles can serve as nucleation points for the subsequent precipitated carbon dioxide gas, thereby improving the precipitation efficiency of carbon dioxide.

[0037] In the scheme of the embodiment, by arranging the hydrophobic coating 320 on the inner wall of the first flow space 311 of the heat and mass transfer device 300, in the process of heat exchange between the absorbent rich solution from the absorption tower 100 and the absorbent lean solution from the regeneration tower 200 in the heat and mass transfer device 300, the carbon dioxide gas is precipitated from the absorbent rich solution due to the temperature rise, and because the hydrophobic coating 320 is easy to be attached by bubbles, the precipitated carbon dioxide gas can be attached to the hydrophobic coating 320 as initial bubbles, thereby becoming the nucleation point of the subsequent precipitated carbon dioxide gas, so that the carbon dioxide precipitated from the absorbent rich solution is more easily continuously precipitated from the bubbles, thereby improving the precipitation efficiency of carbon dioxide in the heat and mass transfer device 300, that is, the heat and mass transfer device 300 can also realize better carbon dioxide resolution work outside the regeneration tower 200, thereby improving the overall resolution efficiency of carbon dioxide in the carbon capture system.

[0038] As shown in Figures 1 to 5 , the thickness of the hydrophobic coating 313 is arranged between 5 microns and 15 microns, for example, it can be 5 microns, 6 microns, 7 microns, 8 microns, 9 microns, 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, etc. The thickness of 5 microns to 15 microns makes the thickness of the hydrophobic coating 313 more appropriate, and the bubble adhesion is better. In addition, the hydrophobic coating 313 can be a metal oxide coating, a Teflon coating, or a ceramic coating, etc.

[0039] As shown in Figures 1 to 5 , the shell 310 is provided with an exhaust port 313, which communicates with the first flow space 311, for discharging the gas in the first flow space 311. By arranging the exhaust port 313, the carbon dioxide gas generated in the first flow space 311 can be discharged in time, because the mixing of gas in the liquid will have a certain impact on the flow stability, and the design of the pipeline allowing gas-liquid two-phase flow requires higher, in addition, in the case of particularly long conveying distance, the pipeline allowing gas-liquid two-phase flow cannot be used, therefore, the carbon dioxide gas generated in the first flow space 311 is discharged in time through the exhaust port 313, which can avoid the impact of carbon dioxide gas on the flow stability of the absorbent rich solution, and reduce the cost of the pipeline.

[0040] It should be noted that in other implementations, a pipeline allowing gas-liquid two-phase flow can also be used.

[0041] As shown in Figures 1 to 5 , the heat and mass transfer device 300 includes a plurality of heat exchange plates 330, the heat exchange plates 330 are arranged in the shell 310, the two sides of the heat exchange plates 330 respectively constitute the first flow space 311 and the second flow space 312, and the hydrophobic coating 320 is arranged on the side of the heat exchange plates 330 facing the first flow space 311.

[0042] Referring to Figures 1 to 5 As shown, specifically, the plurality of heat exchange plates 330 are distributed in the housing 310 in a spaced manner, so as to form a plurality of first flow spaces 311 and a plurality of second flow spaces 312 staggered in the distribution direction of the plurality of heat exchange plates 330. As shown in the plan view of Figure 2 and Figure 3 , the plurality of heat exchange plates 330 are distributed in parallel along the left-right direction, so as to form a plurality of first flow spaces 311 and a plurality of second flow spaces 312 distributed along the left-right direction, the plurality of first flow spaces 311 and the plurality of second flow spaces 312 are staggered, that is, only the second flow space 312 is adjacent to each first flow space 311, and only the first flow space 311 is adjacent to each second flow space 312, and there is no two or more first flow spaces 311 adjacent to each other, and there is no two or more second flow spaces 312 adjacent to each other, so that the absorbent rich solution in the first flow space 311 exchanges heat with the absorbent lean solution in the adjacent second flow space 312 via the heat exchange plate 330.

[0043] Referring to Figures 1 to 5 As shown, because the heat exchange plate 330 separates the first flow space 311 and the second flow space 312, the hydrophobic coating 320 is arranged on the side of the heat exchange plate 330 facing the first flow space 311, that is, on the inner wall of the first flow space 311.

[0044] In the scheme of the present embodiment, by arranging the heat exchange plate 330 in the housing 310 to separate the first flow space 311 and the second flow space 312, and arranging the hydrophobic coating 320 on the side of the heat exchange plate 330 facing the first flow space 311, on the basis of improving the carbon dioxide release efficiency of the absorbent rich solution in the first flow space 311, because the hydrophobic coating 320 is arranged on the relatively flat surface of the heat exchange plate 330, the attachment process of the hydrophobic coating 320 is simpler, and the production cost is reduced.

[0045] It should be noted that in other embodiments, the heat transfer and mass transfer device can only include one heat exchange plate.

[0046] As shown in Figures 2 to 5 , the housing 310 is formed with an exhaust area 314 inside, the first flow space 311 and the second flow space 312 are distributed in the transverse direction, and the exhaust area 314 is located at the top side of the first flow space 311 and the second flow space 312. The exhaust port 313 communicates with the plurality of first flow spaces 311 via the exhaust area 314.

[0047] As shown in Figures 2 to 5As shown, specifically, the first flow space 311 and the second flow space 312 are at the same height, while the height of the internal space of the outer shell 310 is greater than the height of the first flow space 311 and the second flow space 312. This forms an exhaust zone 314 above the plurality of first flow spaces 311 and the plurality of second flow spaces 312. Carbon dioxide precipitated from the absorbent-rich liquid in the plurality of first flow spaces 311 first enters the exhaust zone 314. The exhaust port 313 connects the exhaust zone 314 with the external space of the outer shell 310, allowing carbon dioxide gas entering the exhaust zone 314 to be discharged through the exhaust port 313.

[0048] In this embodiment, by providing an exhaust zone 314 inside the housing 310, the exhaust port 313 is connected to multiple first flow spaces 311 via the exhaust zone 314. This allows the carbon dioxide gas precipitated in the multiple first flow spaces 311 to first collect in the exhaust zone 314 and then be discharged from the heat transfer and mass transfer device 300 via the exhaust port 313. Only one exhaust valve needs to be provided at the exhaust port 313 to control the emission of carbon dioxide in the multiple first flow spaces 311, thereby facilitating the unified management of the emission of carbon dioxide gas from the multiple first flow spaces 311 to the outside.

[0049] Alternatively, a fan can be installed in the exhaust zone to direct airflow towards the exhaust port, thereby accelerating the removal efficiency of carbon dioxide from all the first flow spaces. Or, a suction fan can be installed at the exhaust port to further accelerate carbon dioxide removal and simultaneously reduce the internal pressure of the first flow space, making it easier for carbon dioxide to precipitate.

[0050] It should be noted that in some other embodiments, each first flow space may be provided with a separate exhaust port.

[0051] like Figures 2 to 3 As shown, a sealing top plate 340 is provided on the top of the first flow space 311 and the second flow space 312 to separate the first flow space 311, the second flow space 312 and the exhaust zone 314. The sealing top plate 340 on the top of the first flow space 311 is made of a waterproof and breathable material. That is to say, the first flow space 311 and the second flow space 312 are separated from the exhaust zone 314, so that the absorbent-rich liquid in the first flow space 311 and the absorbent-poor liquid in the second flow space 312 cannot enter the exhaust zone 314. However, since the sealing top plate 340 on the top of the first flow space 311 is made of a waterproof and breathable material, the carbon dioxide released from the absorbent-rich liquid in the first flow space 311 can enter the exhaust zone 314.

[0052] The skilled in the art can understand that, by setting the sealing top plate 340 on the top of the first flow space 311 and the second flow space 312, making the sealing top plate 340 on the top of the first flow space 311 made of waterproof and breathable material, the first flow space 311, the second flow space 312 and the exhaust area 314 can be separated, so that the absorbent rich liquid in the first flow space 311 and the absorbent lean liquid in the second flow space 312 cannot enter the exhaust area 314, but the carbon dioxide precipitated from the absorbent rich liquid in the first flow space 311 can enter the exhaust area 314, on the basis of realizing exhaust, avoiding the mixing of the absorbent rich liquid and the absorbent lean liquid.

[0053] It should be noted that, in other embodiments, the first flow space and the second flow space can also be set higher, and the absorbent rich liquid and the absorbent lean liquid can not fill the first flow space and the second flow space. Alternatively, an exhaust port can be provided in each first flow space, and a waterproof and breathable barrier layer can be provided at the exhaust port.

[0054] Referring to Figures 2 to 5 As shown in FIG. 3, the heat and mass transfer device 300 includes a first pipe 350 and a second pipe 360, the first pipe 350 and the second pipe 360 penetrating all the heat exchange plates 330 along the distribution direction of the plurality of heat exchange plates 330, the first pipe 350 having an opening communicating all the first flow spaces 311, the first pipe 350 being used for conveying the low-temperature side medium to the first flow spaces 311, the second pipe 360 having an opening communicating all the second flow spaces 312, the second pipe 360 being used for conveying the high-temperature side medium to the second flow spaces 312.

[0055] Referring to Figures 2 to 5 As shown in FIG. 3, the heat and mass transfer device 300 includes a third pipe 370 and a fourth pipe 380, the third pipe 370 and the fourth pipe 380 penetrating all the heat exchange plates 330 along the distribution direction of the plurality of heat exchange plates 330, the third pipe 370 having an opening communicating all the first flow spaces 311, the third pipe 370 being used for allowing the low-temperature side medium in the first flow spaces 311 to flow out, the fourth pipe 380 having an opening communicating all the second flow spaces 312, the fourth pipe 380 being used for allowing the high-temperature side medium in the second flow spaces 312 to flow out.

[0056] As Figures 2 to 5As shown, specifically, the first pipe 350, the second pipe 360, the third pipe 370, and the fourth pipe 380 penetrate the multiple heat exchange plates 330 along the distribution direction of the multiple heat exchange plates 330, thus each having a portion located within all the first flow spaces 311 and all the second flow spaces 312. The first pipe 350 and the second pipe 360 ​​are positioned near the top of the first flow spaces 311 and the second flow spaces 312, while the third pipe 370 and the fourth pipe 380 are positioned near the bottom of the first flow spaces 311 and the second flow spaces 312. (Refer to...) Figure 2 As indicated by the flow arrows, the first pipe 350 and the third pipe 370 have openings within the first flow space 311, allowing the absorbent-rich liquid to enter the first flow space 311 from the opening in the first pipe 350 and flow out of the first flow space 311 from the opening in the third pipe 370. (See reference...) Figure 4 As indicated by the flow arrows, the second pipe 360 ​​and the fourth pipe 380 have openings in the portion of the second flow space 312, so that the absorbent-poor solution can enter the second flow space 312 from the opening of the second pipe 360 ​​and flow out of the second flow space 312 from the opening of the fourth pipe 380.

[0057] like Figures 1 to 5 As shown, the first pipeline 350 is connected to the absorption tower 100, the second pipeline 360 ​​is connected to the regeneration tower 200, the third pipeline 370 is connected to the regeneration tower 200, and the fourth pipeline 380 is connected to the absorption tower 100. During the operation of the carbon capture system, the pretreated flue gas enters the absorption tower 100. In the absorption tower 100, the flue gas reacts with the lean absorbent solution. The lean absorbent solution absorbs the carbon dioxide in the flue gas to become the rich absorbent solution. The rich absorbent solution flows out from the rich solution outlet of the absorption tower 100, flows into the first pipeline 350, and enters each first flow space 311 through the opening on the first pipeline 350. After exchanging heat with the lean absorbent solution in the second flow space 312, it is collected in the third pipeline 370 through the opening and then transported to the regeneration tower 200. The absorbent rich liquid releases carbon dioxide gas due to the temperature rise in the first flow space 311. After the carbon dioxide gas is discharged through the exhaust port 313, it can be collected in the third pipeline 370 and transported to the regeneration tower 200 together, or it can be directly transported into the regeneration tower 200 using a separate pipeline.

[0058] In the regeneration tower 200, high-temperature steam is used to treat the rich absorbent solution, releasing carbon dioxide from it. The carbon dioxide gas is then transported separately for further processing. The rich absorbent solution, now free of carbon dioxide, becomes a lean absorbent solution and enters the second pipeline 360. Through an opening in the second pipeline 360, it enters the second flow space 312, where it exchanges heat with the rich absorbent solution in the first flow space 311. Finally, it is collected through an opening in the fourth pipeline 380 and transported to the absorption tower 100.

[0059] In this embodiment, by setting up a first pipe 350, a second pipe 360, a third pipe 370, and a fourth pipe 380, the first pipe 350 and the third pipe 370 can simultaneously achieve the circulation of absorbent-rich liquid in multiple first flow spaces 311, and the second pipe 360 ​​and the fourth pipe 380 can simultaneously achieve the circulation of absorbent-poor liquid in multiple second flow spaces 312, thereby helping to simplify the structure.

[0060] It should be noted that in some other embodiments, a common lean-rich liquid heat exchanger can also be set between the heat transfer and mass transfer device and the absorption tower, so that the heat transfer and mass transfer device indirectly receives the absorbent rich liquid from the absorption tower.

[0061] It should be noted that in some other embodiments, the first and third pipelines may also be configured such that the third pipeline is positioned higher than the first pipeline. This configuration can further facilitate gas flow from the top of the first flow space, improving gas discharge efficiency. Alternatively, the second and fourth pipelines may also be configured such that the fourth pipeline is positioned higher than the second pipeline.

[0062] It should be noted that in some other embodiments, each first flow space may be provided with a separate inlet or outlet, or each second flow space may be provided with a separate inlet or outlet.

[0063] like Figures 1 to 6 As shown, in one embodiment, the heat exchange plate 330 has a plurality of pits 331 on one side with a hydrophobic coating 320, thereby forming an uneven surface that is more conducive to bubble adhesion.

[0064] It should be noted that in some other embodiments, the side of the heat exchange plate with the hydrophobic coating may also have multiple protrusions.

[0065] Up to now, the person skilled in the art should recognize that, although the multiple exemplary embodiments of the utility model have been shown and described in detail herein, many other variants or modifications conforming to the principles of the utility model can still be directly determined or deduced according to the content disclosed by the utility model without departing from the spirit and scope of the utility model. Therefore, the scope of the utility model should be understood and recognized as covering all these other variants or modifications.

Claims

1. A heat and mass transfer device, characterized by, The heat and mass transfer device comprises: a housing, inside which a first flow space and a second flow space are formed in isolation, the first flow space being used for a low-temperature side medium to flow, and the second flow space being used for a high-temperature side medium to flow, so that the low-temperature side medium and the high-temperature side medium exchange heat; and a hydrophobic coating layer, which is arranged on the inner wall of the first flow space, and is used for bubbles of the low-temperature side medium in the first flow space to adhere.

2. The heat and mass transfer device according to claim 1, wherein the housing is provided with an exhaust port, which is in communication with the first flow space, and is used for exhausting gas in the first flow space.

3. The heat and mass transfer device according to claim 2, wherein the heat and mass transfer device comprises at least one heat exchange plate, which is arranged in the housing, and two sides of the heat exchange plate respectively constitute the first flow space and the second flow space, and the hydrophobic coating layer is arranged on the side of the heat exchange plate facing the first flow space.

4. The heat and mass transfer device according to claim 3, wherein the heat and mass transfer device comprises a plurality of heat exchange plates, which are distributed in the housing in intervals, so that a plurality of first flow spaces and a plurality of second flow spaces are formed in a staggered distribution along the distribution direction of the plurality of heat exchange plates.

5. The heat and mass transfer device according to claim 4, wherein the housing is internally formed with an exhaust area, the first flow space and the second flow space are distributed in a transverse direction, the exhaust area is located at the top side of the first flow space and the second flow space, and the exhaust port is in communication with the plurality of first flow spaces via the exhaust area.

6. The heat and mass transfer device according to claim 5, wherein the top of the first flow space and the second flow space is provided with a sealing top plate, which is used for separating the first flow space, the second flow space and the exhaust area, and the sealing top plate at the top of the first flow space is made of a waterproof and breathable material.

7. The heat and mass transfer device according to claim 4, wherein the heat and mass transfer device comprises a first pipeline and a second pipeline, the first pipeline and the second pipeline penetrate all the heat exchange plates along the distribution direction of the plurality of heat exchange plates, the first pipeline has openings in communication with all the first flow spaces, and is used for conveying the low-temperature side medium to the first flow spaces, the second pipeline has openings in communication with all the second flow spaces, and is used for conveying the high-temperature side medium to the second flow spaces; and / or the heat and mass transfer device comprises a third pipeline and a fourth pipeline, the third pipeline and the fourth pipeline penetrate all the heat exchange plates along the distribution direction of the plurality of heat exchange plates, the third pipeline has openings in communication with all the first flow spaces, and is used for the low-temperature side medium in the first flow spaces to flow out, the fourth pipeline has openings in communication with all the second flow spaces, and is used for the high-temperature side medium in the second flow spaces to flow out.

8. The heat and mass transfer device according to claim 3, wherein the side of the heat exchange plate provided with the hydrophobic coating is provided with a plurality of pits or protrusions.

9. The heat and mass transfer device according to claim 1, wherein the thickness of the hydrophobic coating is set between 5 microns and 15 microns.

10. A carbon capture system characterized by, comprising: an absorption tower for capturing carbon dioxide with lean liquid; a regeneration tower for desorbing carbon dioxide from rich liquid; and the heat and mass transfer device according to any one of claims 1 to 9 is arranged between the absorption tower and the regeneration tower for directly or indirectly receiving rich liquid generated by the absorption tower and lean liquid generated by the regeneration tower to achieve heat exchange. ​

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