Carbon dioxide capture device and carbon dioxide capture system having the same

Abstract

The application provides a carbon dioxide capturing device and a carbon dioxide capturing system with the same, wherein the carbon dioxide capturing device comprises a tower body, a first liquid inlet arranged on the tower body, a first phase separator located below a first liquid level when the first phase separator is in a phase separation position, part of a structure of the first phase separator located above the first liquid level when the first phase separator is in a avoiding position, a second phase separator arranged below the first liquid level, an air inlet arranged on the tower body, a first liquid outlet arranged on the tower body and located below the second phase separator, a liquid outlet structure in communication with the first phase separator and the second phase separator, a driving structure in driving cooperation with the second phase separator, and a controller for controlling operation of the driving structure according to a detection signal of a liquid level detection structure. The technical scheme of the application effectively solves the problem of poor separation effect of lean liquid and rich liquid in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon dioxide capture, in particular to a carbon dioxide capture device and a carbon dioxide capture system with the same. BACKGROUND

[0002] When capturing carbon dioxide, an absorbent can be used for absorption, and the absorbent produces a lean solution and a rich solution when absorbing carbon dioxide.

[0003] In order to separate carbon dioxide from the solution, the rich solution needs to be sent into a regeneration tower. However, due to the high proportion of water in the absorbent, a large amount of energy is consumed in the heating and evaporation of water during the high-temperature desorption process in the regeneration tower. A phase separator can be arranged in the absorption tower to separate the rich solution and the lean solution, thereby reducing the total amount of absorbent entering the regeneration tower.

[0004] In the related art, the phase separator is arranged in the absorption tower. When the gas and the absorbent are in contact, there is vortex and turbulent flow, which increases the disturbance of the absorbent liquid surface, and further causes the lean solution and the rich solution to be easily mixed, thereby causing the lean solution to mix with the rich solution when the lean solution and the rich solution are separated in the phase separation cavity, and resulting in poor separation effect of the lean solution and the rich solution. SUMMARY

[0005] The main purpose of the present application is to provide a carbon dioxide capture device and a carbon dioxide capture system with the same, so as to solve the problem of poor separation effect of the lean solution and the rich solution in the related art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a carbon dioxide capture device is provided, comprising: a tower body; a first liquid inlet, the first liquid inlet being arranged on the tower body; a first phase separator, the first phase separator being movably arranged in the tower body, the first phase separator having a phase separation position and an avoiding position, when the first phase separator is in the phase separation position, the first phase separator is below the first liquid surface, when the first phase separator is in the avoiding position, part of the structure of the first phase separator is above the first liquid surface; a second phase separator, the second phase separator being movably arranged in the tower body and below the first phase separator, the second phase separator being arranged below the first liquid surface; an air inlet, the air inlet being arranged on the tower body and below the second phase separator; a first liquid outlet, the first liquid outlet being arranged on the tower body and below the second phase separator; a liquid outlet structure, the liquid outlet structure being in communication with the first phase separator and the second phase separator; a driving structure, the driving structure being in driving cooperation with the second phase separator; a liquid level detection structure, the liquid level detection structure being arranged on the tower body and capable of detecting the liquid level of the first liquid surface and the liquid level of the second liquid surface; a controller, the controller being electrically connected with the driving structure, and the controller controlling the operation of the driving structure according to the detection signal of the liquid level detection structure.

[0007] Further, the liquid outlet structure comprises a first liquid outlet pipe and a second liquid outlet pipe in communication with the outside of the tower body, the first liquid outlet pipe is in communication with the bottom of the first phase separator, the second liquid outlet pipe is in communication with the bottom of the second phase separator, and the first liquid outlet pipe is arranged in the second liquid outlet pipe.

[0008] Further, the first phase separator comprises a separation cylinder, the first liquid outlet pipe is in communication with the bottom of the separation cylinder, and the cross-sectional area of the separation cylinder gradually decreases from the top of the tower body to the bottom of the tower body.

[0009] Further, the carbon dioxide capture device further comprises a stop structure arranged in the tower body, the stop structure is arranged above the first phase separator, and the projection of the end of the first phase separator close to the top of the tower body on the bottom of the tower body is located in the projection of the end of the stop structure close to the bottom of the tower body on the bottom of the tower body.

[0010] Further, the stop structure comprises a guide plate and a support, the support is arranged between the separation cylinder and the guide plate, the carbon dioxide capture device further has a flow space, the flow space is formed between the guide plate and the separation cylinder, and the cross-sectional area of the guide plate gradually increases from the top of the tower body to the bottom of the tower body.

[0011] Further, the driving structure comprises a first magnetic member and a second magnetic member, the first magnetic member is arranged above the first phase separator, the second magnetic member is arranged on the first phase separator, and the side of the first magnetic member facing the second magnetic member and the side of the second magnetic member facing the first magnetic member are magnetically identical.

[0012] Further, the driving structure further comprises a transmission member arranged on the first phase separator, the transmission member has a transmission state and an avoiding state, the transmission member is in abutting fit with the second phase separator when the transmission member is in the transmission state, and the transmission member is separated from the second phase separator when the transmission member is in the avoiding state.

[0013] Further, the carbon dioxide capture device further comprises a reflux pipe, the reflux pipe is in communication between the liquid outlet structure and the first liquid inlet.

[0014] According to another aspect of the present application, a carbon dioxide capture system is provided, comprising a carbon dioxide capture device, and the carbon dioxide capture device is the above-mentioned carbon dioxide capture device.

[0015] Further, the carbon dioxide capture system further comprises a first pump body in communication with the first liquid inlet, and / or the carbon dioxide capture system further comprises a second pump body arranged on the liquid outlet structure.

[0016] The carbon dioxide capturing device comprises a tower body, a first liquid inlet, a first phase separator, a second phase separator, an air inlet, a first liquid outlet, a liquid outlet structure, a driving structure, a liquid level detection structure and a controller. The solution can enter the tower body through the first liquid inlet, and then the solution can react with the mixed gas entering the tower body from the air inlet, and then the solution can absorb a component of the mixed gas. During the reaction of the mixed gas and the solution, rich liquid and lean liquid are formed, the rich liquid is located below the lean liquid, the liquid surface of the rich liquid far from the lean liquid is the first liquid surface, and the second liquid surface is the boundary between the rich liquid and the lean liquid. The rich liquid can flow out of the tower body through the first liquid outlet. The first phase separator can move up and down in the tower body, and then the first phase separator can be located above the first liquid surface or below the first liquid surface, that is, the first phase separator can be switched between the phase separation position and the avoidance position. When the separation structure is in the phase separation position, the lean liquid can flow to the liquid outlet structure through the first phase separator, and then the lean liquid flows out through the liquid outlet structure. The second phase separator can move in the tower body, and then the second phase separator can be moved to the second liquid surface, that is, the lean liquid can be completely located above the second phase separator, so that the lean liquid can be quickly discharged, and the lean liquid can be completely discharged. The liquid level detection structure can detect the liquid level of the first liquid surface and the liquid level of the second liquid surface, so that the controller can control the operation of the driving structure according to the detection signal of the liquid level detection structure, and then the driving structure can drive the movement of the second phase separator, so that the lean liquid can be completely discharged through the second phase separator. Therefore, the technical scheme of the present application effectively solves the problem of poor separation effect of lean liquid and rich liquid in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings constituting a part of the specification of the present application are used to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0018] Figure 1 A cross-sectional view of an embodiment of the carbon dioxide capturing device according to the present application is shown;

[0019] Figure 2 a sectional view of the carbon dioxide capture device of Figure 1

[0020] Figure 3 a sectional view of the carbon dioxide capture device of Figure 2

[0021] Figure 4 a sectional view of the carbon dioxide capture device of Figure 2

[0022] Figure 5 a sectional view of the carbon dioxide capture device of Figure 4

[0023] Figure 6 a sectional view of the carbon dioxide capture device of Figure 4

[0024] wherein the above-mentioned drawings include the following reference signs:

[0025] 1, first liquid surface; 2, second liquid surface; 10, tower body; 20, first liquid inlet; 30, first phase separator; 31, separation cylinder; 40, second phase separator; 50, gas inlet; 60, first liquid outlet; 70, liquid outlet structure; 71, first liquid outlet pipe; 72, second liquid outlet pipe; 80, driving structure; 81, first magnetic part; 82, second magnetic part; 83, transmission part; 84, baffle; 841, connecting block; 8411, first guide inclined surface; 8412, second guide inclined surface; 90, stop structure; 91, flow guide plate; 911, annular groove; 912, mounting groove; 92, support part; 93, elastic part; 94, limiting block; 100, flow space; 110, return pipe; 200, first pump body; 210, second pump body. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative work, fall within the scope of protection of the present application.

[0027] ​​​​​It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] like Figure 1 As shown, the carbon dioxide capture device of this embodiment includes: a tower body 10, a first liquid inlet 20, a first phase separator 30, a second phase separator 40, an air inlet 50, a first liquid outlet 60, a liquid outlet structure 70, a drive structure 80, a liquid level detection structure, and a controller. The first liquid inlet 20 is disposed on the tower body 10. The first phase separator 30 is vertically movable within the tower body 10, and has a phase-separation position and a clearance position. When the first phase separator 30 is in the phase-separation position, it is located between the first liquid surface 1 and the second liquid surface 2. When the first phase separator 30 is in the clearance position, a portion of its structure is located above the first liquid surface 1. The second phase separator 40 is vertically movable within the tower body 10 and is located below the first phase separator 30, below the first liquid surface 1. The air inlet 50 is disposed on the tower body 10 and below the second phase separator 40. The first liquid outlet 60 is located on the tower body 10, below the second phase separator 40. The liquid outlet structure 70 is connected to both the first phase separator 30 and the second phase separator 40. The drive structure 80 is driven by the second phase separator 40. A liquid level detection structure is located on the tower body 10 and can detect the liquid level of the first liquid level 1 and the liquid level of the second liquid level 2. The controller is electrically connected to the drive structure 80, and controls the operation of the drive structure 80 according to the detection signal from the liquid level detection structure.

[0030] The technical scheme of the embodiment is applied to a carbon dioxide capturing device, which comprises a tower body 10, a first liquid inlet 20, a first phase separator 30, a second phase separator 40, an air inlet 50, a first liquid outlet 60, a liquid outlet structure 70, a driving structure 80, a liquid level detection structure, and a controller. The tower body 10 is provided with the first liquid inlet 20, the air inlet 50, and the liquid level detection structure. The tower body 10 is provided with the first phase separator 30 and the second phase separator 40, and the first phase separator 30 and the second phase separator 40 are movably arranged in the tower body 10. The first phase separator 30 has a phase separation position below a first liquid surface 1 and an avoiding position with part of the structure above the first liquid surface 1. The second phase separator 40 is below the first phase separator 30 and is arranged below the first liquid surface 1. The air inlet 50 is below the second phase separator 40. The first liquid outlet 60 is below the second phase separator 40. The liquid outlet structure 70 is in communication with the first phase separator 30 and the second phase separator 40. The driving structure 80 is in driving cooperation with the second phase separator 40. The liquid level detection structure can detect the liquid level of the first liquid surface 1 and the liquid level of a second liquid surface 2. The controller is electrically connected with the driving structure 80, and controls the operation of the driving structure 80 according to the detection signal of the liquid level detection structure. Through the above arrangement, the solution can enter the tower body through the first liquid inlet 20, and then the solution can react with the mixed gas entering the tower body 10 through the air inlet, and then the solution can absorb a component of the mixed gas. During the reaction of the mixed gas and the solution, rich liquid and lean liquid are formed, the rich liquid is below the lean liquid, the liquid surface of the lean liquid away from the rich liquid is the first liquid surface 1, and the boundary between the rich liquid and the lean liquid is the second liquid surface 2. The rich liquid can flow out of the tower body 10 through the first liquid outlet 60. The first phase separator 30 can move up and down in the tower body 10, and then the first phase separator 30 can be above the first liquid surface 1 or below the first liquid surface 1, that is, the first phase separator 30 can be switched between the phase separation position and the avoiding position. When the separation structure is in the phase separation position, the lean liquid can flow to the liquid outlet structure 70 through the first phase separator 30, and then the lean liquid flows out through the liquid outlet structure 70, so that the lean liquid is more easily separated, and the separation effect of the lean liquid and the rich liquid is improved. The second phase separator 40 can move in the tower body, and then the second phase separator 40 can move to the second liquid surface 2, that is, the lean liquid can be completely above the second phase separator 40, so that the lean liquid can be quickly discharged, and the lean liquid can be completely discharged. The liquid level detection structure can detect the liquid level of the first liquid surface 1 and the liquid level of the second liquid surface 2, so that the controller can control the operation of the driving structure 80 according to the detection signal of the liquid level detection structure, and then the driving structure 80 can drive the movement of the second phase separator 40, so that the lean liquid can be completely discharged through the second phase separator 40. Therefore, the technical scheme of the embodiment effectively solves the problem of poor separation effect of the lean liquid and the rich liquid in the related art.

[0031] By setting the first phase separator 30 and the second phase separator 40 to separately guide the lean liquid, the prior art problem of mixing of the lean liquid and the rich liquid due to disturbance of the liquid level, and further causing part of the lean liquid to flow out with the rich liquid when the rich liquid is guided out, which makes the separation of the lean liquid and the rich liquid more difficult, i.e., the separation effect of the lean liquid and the rich liquid is poor, is avoided.

[0032] It should be noted that the solution refers to the compounded alcohol amine organic solvent.

[0033] When the separation device of the lean liquid and the rich liquid is separately arranged outside the tower body 10, the lean liquid and the rich liquid are mixed together and are not easy to separate.

[0034] The solution can absorb a certain component of the mixed gas, which refers to flue gas, and the certain component refers to carbon dioxide.

[0035] Specifically, the liquid level detection structure can be the liquid level measurement device in the application number: CN202111462670.1, and the invention name is "a method and device for measuring the liquid level of the interface between the layered liquids", and the liquid level is measured by using the liquid level measurement method.

[0036] Of course, the liquid level detection structure can also be other structures in the prior art.

[0037] The lean liquid refers to the solution with less absorption of carbon dioxide.

[0038] The rich liquid refers to the solution with more absorption of carbon dioxide.

[0039] The densities of the lean liquid and the rich liquid are different, and the lean liquid is located above the rich liquid.

[0040] Part of the structure of the first phase separator 30 is located above the first liquid level 1, which means that the first phase separator floats on the lean liquid.

[0041] As shown in Figure 1 and Figure 3 In the present embodiment, the liquid outlet structure 70 includes a first liquid outlet pipe 71 and a second liquid outlet pipe 72 which communicate with the outside of the tower body 10, the first liquid outlet pipe 71 communicates with the bottom of the first phase separator 30, the second liquid outlet pipe 72 communicates with the bottom of the second phase separator 40, and the first liquid outlet pipe 71 is arranged in the second liquid outlet pipe 72. The first liquid outlet pipe 71 enables the lean liquid in the first phase separator 30 to flow out. The second liquid outlet pipe 72 enables the lean liquid in the second phase separator 40 to flow out.

[0042] As shown in Figure 1 and Figure 2As shown in the embodiment, the first phase separator 30 comprises a separation cylinder 31, and the first liquid outlet pipe 71 communicates with the bottom of the separation cylinder 31. The cross-sectional area of the separation cylinder 31 gradually decreases from the top of the tower body 10 to the bottom of the tower body 10. Through the above arrangement, the cross-sectional area of the end of the separation cylinder 31 close to the top of the tower body 10 is larger, so that the lean liquid can more easily enter the separation cylinder 31, and then flow to the bottom of the separation cylinder 31, and then flow out through the first liquid outlet pipe 71.

[0043] It should be noted that the second phase separator 40 has the same structure as the first phase separator 30.

[0044] The vertical cross section of the separation cylinder 31 is arc-shaped, and the ratio of the cross-sectional area of the top end of the separation cylinder 31 to the cross-sectional area of the bottom end of the separation cylinder 31 is between 10 and 20, specifically, can be 10, 12, 15, 18 or 20.

[0045] Specifically, the absorption tower further comprises a guide structure arranged between the inner wall of the tower body 10 and the separation cylinder 31.

[0046] The guide structure comprises a guide rod and a guide groove in guiding cooperation with the guide rod, and the guide rod and the guide groove both extend from the top of the tower body 10 to the bottom of the tower body 10.

[0047] As shown in the embodiment, the guide structure comprises a guide rod and a guide groove in guiding cooperation with the guide rod, and the guide rod and the guide groove both extend from the top of the tower body 10 to the bottom of the tower body 10. Figure 1 and Figure 3 As shown in the embodiment, the carbon dioxide capture device further comprises a stop structure 90 arranged in the tower body 10, the stop structure 90 is arranged above the first phase separator 30, and the projection of the end of the first phase separator 30 close to the top of the tower body 10 on the bottom of the tower body 10 is located in the projection of the end of the stop structure 90 close to the bottom of the tower body 10 on the bottom of the tower body 10. The projection of the end of the first phase separator 30 close to the top of the tower body 10 on the bottom of the tower body 10 is located in the projection of the end of the stop structure 90 close to the bottom of the tower body 10 on the bottom of the tower body 10, so that the solution flowing from the first liquid inlet 20 can be prevented from flowing directly into the first phase separator 30 without reacting with the mixed gas under the action of the stop structure 90, thereby avoiding waste of the solution, i.e. the stop structure 90 can block the first phase separator 30.

[0048] As shown in the embodiment, the guide structure comprises a guide rod and a guide groove in guiding cooperation with the guide rod, and the guide rod and the guide groove both extend from the top of the tower body 10 to the bottom of the tower body 10. Figure 1As shown, in this embodiment, the stop structure 90 includes a guide plate 91 and a support member 92. The support member 92 is disposed between the separation cylinder 31 and the guide plate 91. The carbon dioxide capture device also has a flow space 100, which is formed between the guide plate 91 and the separation cylinder 31. The cross-sectional area of ​​the guide plate 91 gradually increases from the top to the bottom of the tower body 10. By setting the guide plate 91, the flow of the solution can be guided, facilitating the flow of the solution from the top to the bottom of the tower body 10 and preventing the solution from accumulating on the guide plate 91. By setting the support member 92, a gap can be formed between the guide plate 91 and the separation cylinder 31, thereby forming a flow space between the guide plate 91 and the separation cylinder 31, allowing the lean liquid to enter the first phase separator 30 through the flow space.

[0049] It should be noted that the support member 92 includes multiple support rods, which are spaced apart on the side of the guide plate 91 facing the bottom of the tower body 10, thus facilitating the flow of lean liquid.

[0050] like Figure 1 As shown, in this embodiment, the driving structure 80 includes a first magnetic element 81 and a second magnetic element 82. The first magnetic element 81 is disposed above the first phase splitter 30, and the second magnetic element 82 is disposed on the first phase splitter 30. The side of the first magnetic element 81 facing the second magnetic element 82 has the same magnetism as the side of the second magnetic element 82 facing the first magnetic element 81. With this arrangement, the side of the first magnetic element 81 facing the second magnetic element 82 has the same magnetism as the side of the second magnetic element 82 facing the first magnetic element 81. Therefore, under the action of the side of the first magnetic element 81 facing the second magnetic element 82, the second magnetic element 82 can move away from the first magnetic element 81, thereby driving the first phase splitter 30 to move away from the first magnetic element 81, that is, causing the first phase splitter 30 to move closer to the second liquid surface 2.

[0051] It should be noted that the drive structure 80 also includes a power supply, the first magnetic component 81 includes an electromagnet electrically connected to the power supply, and the second magnetic component 82 includes a permanent magnet.

[0052] When the first phase separator 30 switches from the avoidance position to the phase-splitting position, the power supply is turned on, and the current supplied by the power supply gradually increases, energizing the electromagnet. As a result, the second magnetic element 82 can move away from the first magnetic element 81 until the first phase separator 30 is located below the first liquid surface 1, that is, the overflow space 100 is located below the first liquid surface 1, so that the lean liquid can flow out through the first phase separator 30.

[0053] When it is needed to completely discharge the lean liquid, the current provided by the power supply is increased, so that the first phase separator 30 can continue to move towards the direction close to the second liquid surface 2. When the first phase separator 30 drives the second phase separator 40 to move until the second phase separator 40 moves to the second liquid surface 2, at this time, the first phase separator 30 and the second phase separator 40 are both located below the first liquid surface 1, so that the lean liquid can be discharged more quickly under the action of the first phase separator 30 and the second phase separator 40.

[0054] The driving structure 80 further comprises a surrounding plate 84, and the second magnetic member 82 is arranged in the surrounding plate 84.

[0055] The surrounding plate 84 is arranged at the top of the guide plate 91.

[0056] As shown in Figure 1 and Figure 3 In the embodiment, the driving structure 80 further comprises a transmission member 83 arranged on the first phase separator 30. The transmission member 83 has a transmission state and an avoiding state. When the transmission member 83 is in the transmission state, the transmission member 83 is in abutting cooperation with the second phase separator 40. When the transmission member 83 is in the avoiding state, the transmission member 83 is separated from the second phase separator 40. By arranging the transmission member 83, when the first phase separator 30 moves towards the direction away from the first magnetic member 81, the transmission member 83 moves to abut against the second phase separator 40, that is, the transmission member 83 is in the transmission state, and then the transmission member 83 can drive the second phase separator 40 to move towards the direction close to the second liquid surface 2.

[0057] It should be noted that the transmission member 83 comprises a plurality of transmission rods arranged at intervals. The transmission rods are arranged on the outer surface of the first phase separator 30 and extend towards the bottom of the tower body 10.

[0058] As shown in Figure 1 In the embodiment, the carbon dioxide capture device further comprises a reflux pipe 110. The reflux pipe 110 is communicated between the liquid outlet structure 70 and the first liquid inlet 20. By arranging the reflux pipe 110, the lean liquid flowing out through the liquid outlet structure 70 can flow back to the tower body through the first liquid inlet 20, and then the lean liquid can react with the mixed gas, thereby improving the utilization rate of the solution.

[0059] As shown in Figures 4 to 6 The guide plate 91 is provided with an annular groove 911. The opening of the annular groove 911 is arranged on the outer surface of the guide plate 91.

[0060] The stop structure 90 further comprises an elastic member 93 and a limiting block 94. The elastic member 93 is arranged between the groove wall of the annular groove 911 and the first end of the limiting block 94. The first end of the limiting block 94 is movably arranged in the annular groove 911.

[0061] The inner wall of the surrounding plate 84 is provided with a connecting block 841, which has a first guide slope 8411 and a second guide slope 8412 connected with the first guide slope 8411. The limiting block 94 has an extended position matched with the connecting block 841 and a retracted position avoiding the connecting block 841. Such arrangement facilitates the quick connection and disconnection of the surrounding plate 84 and the flow guide plate 91 and facilitates the installation and replacement of the flow guide plate 91.

[0062] The top of the flow guide plate 91 is provided with a mounting groove 912, and the bottom of the surrounding plate 84 is inserted into the mounting groove 912.

[0063] When the surrounding plate 84 is connected with the flow guide plate 91, the surrounding plate 84 is moved towards the flow guide plate 91, and the first guide slope 8411 can extrude the limiting block 94 to move towards the inside of the annular groove 911. When the second end of the limiting block 94 slides from the first guide slope 8411 to the second guide slope 8412, the limiting block 94 gradually moves towards the outside of the annular groove 911 until the second end of the limiting block 94 is matched with the joint of the second guide slope 8412 and the inner wall of the surrounding plate 84. At this time, the limiting block is in the extended position, avoiding the surrounding plate 84 from falling off the flow guide plate 91.

[0064] When the surrounding plate 84 is disconnected from the flow guide plate 91, the surrounding plate 84 is moved away from the flow guide plate 91, and the second guide slope 8412 of the connecting block 841 arranged on the inner wall of the surrounding plate 84 can extrude the limiting block 94 to move towards the inside of the annular groove 911, i.e. to move the limiting block 94 from the extended position to the retracted position. When the second end of the limiting block 94 slides from the second guide slope 8412 to the first guide slope 8411, the surrounding plate 84 can be removed from the flow guide plate 91.

[0065] The elastic members 93, the limiting blocks 94 and the connecting blocks 841 all include multiple, and the multiple elastic members 93, the multiple limiting blocks 94 and the multiple connecting blocks 841 are arranged one by one. This makes the connection of the surrounding plate 84 and the flow guide plate 91 more stable.

[0066] As Figure 1As shown, the carbon dioxide capturing system of the embodiment comprises a carbon dioxide capturing device, which is the carbon dioxide capturing device described above. In use, the lean liquid in the tower body 10 can flow out through the first phase separator 30 and the second phase separator 40, and the lean liquid and the rich liquid in the tower body 10 can be separated, that is, the separation of the lean liquid and the rich liquid can be realized in the tower body 10, and the separation device for separating the lean liquid and the rich liquid arranged outside the tower body 10 can be avoided, and the mixed liquid of the rich liquid and the lean liquid entering the separation device and causing the separation of the rich liquid and the lean liquid to be difficult when the separation device for separating the lean liquid and the rich liquid is arranged outside the carbon dioxide capturing device can be avoided. The carbon dioxide capturing system with the carbon dioxide capturing device described above also has the advantages described above.

[0067] As shown in the drawings, Figure 1 In the embodiment, the carbon dioxide capturing system further comprises a first pump body 200, the first pump body 200 is in communication with the first liquid outlet 60, and the carbon dioxide capturing system further comprises a second pump body 210, the second pump body 210 is arranged on the liquid outlet structure 70. By arranging the first pump body 200, the rich liquid can flow out through the first liquid outlet 60 more quickly. By arranging the second pump body 210, the lean liquid can flow out through the liquid outlet structure more quickly.

[0068] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of contrary description, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0069] For purposes of the description hereinafter, spatial or directional terms, for example, "above", "below", "upper", "lower", and the like, can be used, and relate to the device as illustrated in the figures. However, it is to be understood that no absolute or relative orientation of the device is intended or implied, unless specifically described as such. Terms concerning attachments, coupling and the like, such as "connected" and "coupled" and the like, are to be construed in accordance with their normal meanings, that is, as referring to an indirect or direct connection or coupling. Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to". Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to".

[0070] In addition, it should be pointed out that the use of the terms "first", "second" and the like, to describe various elements in the claims, is merely intended to distinguish between two steps or entities of the application, and is not intended to limit the scope of the present application, unless specifically stated otherwise. Thus, the terms "first", "second", and the like, are not intended to limit the scope of the present application, unless specifically stated otherwise.

[0071] The preferred embodiments of the application are described above in detail. The application is not limited to the embodiments described above, but can be modified and changed by any person skilled in the art without departing from the spirit and principles of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of the protection of the application.

Claims

1. A carbon dioxide capture device, characterized by, The utility model relates to a tower body (10);First liquid inlet (20) is arranged on the tower body (10);First phase separator (30) is movably arranged in the tower body (10), and the first phase separator (30) has phase separation position and avoidance position, when the first phase separator (30) is in phase separation position, the first phase separator (30) is located between first liquid level (1) and second liquid level (2), when the first phase separator (30) is in avoidance position, the part structure of first phase separator (30) is located above first liquid level (1), and the liquid level of poor liquid away from rich liquid is first liquid level (1), and the demarcation of rich liquid and poor liquid is second liquid level (2);Second phase separator (40) is movably arranged in the tower body (10) and is located below the first phase separator (30), and the second phase separator (40) is arranged below first liquid level (1);Air inlet (50) is arranged on the tower body (10) and is located below the second phase separator (40);First liquid outlet (60) is arranged on the tower body (10) and is located below the second phase separator (40);Liquid outlet structure (70) is communicated with the first phase separator (30) and the second phase separator (40);Driving structure (80) includes first magnetic part (81) and second magnetic part (82), and the first magnetic part (81) is arranged above the first phase separator (30), the second magnetic part (82) is arranged on the first phase separator (30), and the side of the first magnetic part (81) towards the second magnetic part (82) is magnetically same with the side of the second magnetic part (82) towards the first magnetic part (81);The driving structure (80) further includes transmission part (83) arranged on the first phase separator (30), and the transmission part (83) has transmission state and avoidance state, when the transmission part (83) is in transmission state, the transmission part (83) is abutted with the second phase separator (40), when the transmission part (83) is in avoidance state, the transmission part (83) is separated from the second phase separator (40);The transmission part (83) includes a plurality of interval transmission rods, and the transmission rod is arranged on the outer surface of the first phase separator (30) and extends towards the direction of the bottom of the tower body (10);Liquid level detection structure is arranged on the tower body (10) and can detect the liquid level of first liquid level (1) and the liquid level of second liquid level (2);Controller is electrically connected with the driving structure (80), and the controller controls the operation of the driving structure (80) according to the detection signal of the liquid level detection structure. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The carbon dioxide capture device of claim 1, wherein, The liquid outlet structure (70) comprises a first liquid outlet pipe (71) and a second liquid outlet pipe (72) in communication with the outside of the tower body (10), the first liquid outlet pipe (71) is in communication with the bottom of the first phase separator (30), the second liquid outlet pipe (72) is in communication with the bottom of the second phase separator (40), and the first liquid outlet pipe (71) is arranged in the second liquid outlet pipe (72).

3. The carbon dioxide capture device of claim 2, wherein, The first phase separator (30) comprises a separation cylinder (31), the first liquid outlet pipe (71) is in communication with the bottom of the separation cylinder (31), and the cross-sectional area of the separation cylinder (31) gradually decreases from the top of the tower body (10) to the bottom of the tower body (10).

4. The carbon dioxide capture device of claim 3, wherein, The carbon dioxide capture device further comprises a stop structure (90) arranged in the tower body (10), the stop structure (90) is arranged above the first phase separator (30), and the projection of one end of the first phase separator (30) close to the top of the tower body (10) on the bottom of the tower body (10) is located in the projection of one end of the stop structure (90) close to the bottom of the tower body (10) on the bottom of the tower body (10).

5. The carbon dioxide capture device of claim 4, wherein, The stop structure (90) comprises a flow guide plate (91) and a support (92), the support (92) is arranged between the separation cylinder (31) and the flow guide plate (91), the carbon dioxide capture device further has a flow space (100), the flow space (100) is formed between the flow guide plate (91) and the separation cylinder (31), and the cross-sectional area of the flow guide plate (91) gradually increases from the top of the tower body (10) to the bottom of the tower body (10).

6. The carbon dioxide capture device of any one of claims 1 to 5, wherein, The carbon dioxide capture device further comprises a reflux pipe (110), the reflux pipe (110) is in communication between the liquid outlet structure (70) and the first liquid inlet (20).

7. A carbon dioxide capture system comprising a carbon dioxide capture device, characterized by, The carbon dioxide capture device is the carbon dioxide capture device according to any one of claims 1 to 6.

8. The carbon dioxide capture system of claim 7, wherein, The carbon dioxide capture system further comprises a first pump body (200) in communication with the first liquid outlet (60), and / or the carbon dioxide capture system further comprises a second pump body (210) arranged on the liquid outlet structure (70).

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