Carbon dioxide trapping device and carbon dioxide trapping system with same

Abstract

The invention provides a carbon dioxide trapping device and a carbon dioxide trapping system with the carbon dioxide trapping device, and the carbon dioxide trapping device comprises a tower body; the first liquid inlet is formed in the tower body; when the first phase splitter is located at the phase splitting position, the first phase splitter is located below the first liquid level, and when the first phase splitter is located at the avoiding position, part of the structure of the first phase splitter is located above the first liquid level; the second phase splitter is arranged below the first liquid level; the gas inlet is formed in the tower body; the first liquid outlet is formed in the tower body and is positioned below the second phase splitter; the liquid outlet structure is communicated with the first phase splitter and the second phase splitter; the driving structure is in driving fit with the second phase splitter; and the controller controls the operation of the driving structure according to a detection signal of the liquid level detection structure. According to the technical scheme, the problem that the barren solution and rich solution separation effect is poor in the prior art is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide capture, and in particular to a carbon dioxide capture device and a carbon dioxide capture system having the same. Background Art

[0002] When capturing carbon dioxide, an absorbent may be used for absorption, and when the absorbent absorbs carbon dioxide, a lean phase solution and a rich phase solution are produced.

[0003] In order to separate carbon dioxide from the solution, the rich phase solution needs to be sent to the regeneration tower. However, due to the high proportion of water in the absorbent, a large amount of energy will be consumed in the heating and evaporation of water during the high-temperature desorption process of the regeneration tower. A phase separator can be set in the absorption tower to separate the rich liquid and the lean liquid, 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 come into contact, eddies and turbulence occur, which increase the disturbance of the absorbent liquid surface, thereby causing the lean liquid and the rich liquid to mix easily. As a result, when the lean liquid and the rich liquid are separated in the phase separation chamber, the rich liquid will be mixed in the lean liquid, resulting in poor separation effect of the lean liquid and the rich liquid. Summary of the invention

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

[0006] In order to achieve the above-mentioned object, according to one aspect of the present invention, a carbon dioxide capture device is provided, comprising: a tower body; a first liquid inlet, the first liquid inlet is arranged on the tower body; a first phase separator, the first phase separator is arranged in the tower body so as to be movable up and down, the first phase separator has a phase separation position and an avoidance position, when the first phase separator is in the phase separation position, the first phase separator is located below the first liquid surface, when the first phase separator is in the avoidance position, part of the structure of the first phase separator is located above the first liquid surface; a second phase separator, the second phase separator is arranged in the tower body so as to be movable up and down, and is located below the first phase separator, The second phase separator is arranged below the first liquid level; the air inlet is arranged on the tower body and is located below the second phase separator; the first liquid outlet is arranged on the tower body and is located below the second phase separator; the liquid outlet structure is connected with the first phase separator and the second phase separator; the driving structure is driven in coordination with the second phase separator; the liquid level detection structure is arranged on the tower body and can detect the liquid level of the first liquid surface and the liquid level of the second liquid surface; the controller is electrically connected to the driving structure, and the controller controls the operation of the driving structure according to the detection signal of the liquid level detection structure.

[0007] Furthermore, the liquid outlet structure includes a first liquid outlet pipe and a second liquid outlet pipe connected to the outside of the tower body, the first liquid outlet pipe is connected to the bottom of the first phase separator, the second liquid outlet pipe is connected to the bottom of the second phase separator, and the first liquid outlet pipe is arranged inside the second liquid outlet pipe.

[0008] Furthermore, the first phase separator includes a separation cylinder, the first liquid outlet pipe is connected to 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] Furthermore, the carbon dioxide capture device also includes a stop structure arranged in the tower body, the stop structure is arranged above the first phase separator, and the projection of one end of the first phase separator close to the top of the tower body at the bottom of the tower body is located within the projection of one end of the stop structure close to the bottom of the tower body at the bottom of the tower body.

[0010] Furthermore, the stop structure includes a guide plate and a support member, the support member is arranged between the separation cylinder and the guide plate, and the carbon dioxide capture device also has a flow space, and a flow space is formed between the guide plate and the separation cylinder. 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] Furthermore, the driving structure includes 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 has the same magnetic properties as the side of the second magnetic member facing the first magnetic member.

[0012] Furthermore, the driving structure also includes a transmission member arranged on the first phase separator, the transmission member has a transmission state and an avoidance state. When the transmission member is in the transmission state, the transmission member abuts and cooperates with the second phase separator, and when the transmission member is in the avoidance state, the transmission member is separated from the second phase separator.

[0013] Furthermore, the carbon dioxide capture device also includes a reflux pipe, which is connected between the liquid outlet structure and the first liquid inlet.

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

[0015] Furthermore, the carbon dioxide capture system further includes a first pump body, which is communicated with the first liquid outlet, and / or the carbon dioxide capture system further includes a second pump body, which is arranged on the liquid outlet structure.

[0016] According to the technical solution of the present invention, the carbon dioxide capture device includes 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 tower body is provided with a first liquid inlet, an air inlet and a liquid level detection structure. The tower body is provided with a first phase separator and a second phase separator, and the first phase separator and the second phase separator can be moved up and down. The first phase separator has a phase separation position below the first liquid surface and a evasion position in which a part of the structure is located above the first liquid surface. The second phase separator is located below the first phase separator, and the second phase separator is arranged below the first liquid surface. The air inlet is located below the second phase separator. The first liquid outlet is located below the second phase separator. The liquid outlet structure is connected to both the first phase separator and the second phase separator. The driving structure cooperates with the second phase separator in driving. The liquid level detection structure can detect the liquid level of the first liquid surface and the liquid level of the second liquid surface. The controller is electrically connected to the driving structure, and the controller controls the operation of the driving structure 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, 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 certain component of the mixed gas. In the process of the reaction between the mixed gas and the solution, a rich liquid and a lean liquid will be formed, the rich liquid is located below the lean liquid, the liquid level of the rich liquid away from the lean liquid is the first liquid level, and the boundary between the rich liquid and the lean liquid is the second liquid level. 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 level or below the first liquid level, that is, the first phase separator can switch 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 move to the second liquid level, that is, the lean liquid can be completely located above the second phase separator, which is convenient for the lean liquid to 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 solution 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 THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic cross-sectional view of an embodiment of a carbon dioxide capture device according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of a three-dimensional structure in which a first phase separator and a second phase separator of a carbon dioxide capture device are connected;

[0020] Figure 3 Shows Figure 2 A schematic cross-sectional view of a carbon dioxide capture device;

[0021] Figure 4 Shows Figure 2 A schematic diagram of a three-dimensional structure in which a coaming and a guide plate of a carbon dioxide capture device are connected;

[0022] Figure 5 Shows Figure 4 A partial enlarged schematic diagram of the carbon dioxide capture device at point A;

[0023] Figure 6 Shows Figure 4 Schematic cross-sectional view of a carbon dioxide capture device.

[0024] The above drawings include the following reference numerals:

[0025] 1. First liquid level; 2. Second liquid level; 10. Tower body; 20. First liquid inlet; 30. First phase separator; 31. Separation cylinder; 40. Second phase separator; 50. Air 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 member; 82. Second magnetic member; 83. Transmission member; 84. Enclosure; 841. Connecting block; 8411. First guide slope; 8412. Second guide slope; 90. Stop structure; 91. Guide plate; 911. Annular groove; 912. Mounting groove; 92. Support member; 93. Elastic member; 94. Limiting block; 100. Flow space; 110. Reflux pipe; 200. First pump body; 210. Second pump body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[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 driving structure 80, a liquid level detection structure and a controller. The first liquid inlet 20 is arranged on the tower body 10. The first phase separator 30 is arranged in the tower body 10 so as to be movable up and down. The first phase separator 30 has a phase separation position and an avoidance position. When the first phase separator 30 is in the phase separation position, the first phase separator 30 is located between the first liquid level 1 and the second liquid level 2. When the first phase separator 30 is in the avoidance position, part of the structure of the first phase separator 30 is located above the first liquid level 1. The second phase separator 40 is arranged in the tower body 10 so as to be movable up and down and is located below the first phase separator 30. The second phase separator 40 is arranged below the first liquid level 1. The air inlet 50 is arranged on the tower body 10 and is located below the second phase separator 40. The first liquid outlet 60 is arranged on the tower body 10 and is located below the second phase separator 40. The liquid outlet structure 70 is in communication with both the first phase separator 30 and the second phase separator 40. The driving structure 80 is driven and cooperated with the second phase separator 40. The liquid level detection structure is arranged on the tower body 10 and can detect the liquid level of the first liquid surface 1 and the liquid level of the second liquid surface 2. The controller is electrically connected to 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.

[0030] Applying the technical solution of this embodiment, the carbon dioxide capture device 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 driving structure 80, a liquid level detection structure and a controller. The tower body 10 is provided with a first liquid inlet 20, an air inlet 50 and a liquid level detection structure. The tower body 10 is provided with a first phase separator 30 and a second phase separator 40, and the first phase separator 30 and the second phase separator 40 can be arranged to move up and down, and the first phase separator 30 has a phase separation position below the first liquid level 1 and a partial structure above the first liquid level 1. The second phase separator 40 is located below the first phase separator 30, and the second phase separator 40 is arranged below the first liquid level 1. The air inlet 50 is located below the second phase separator 40. The first liquid outlet 60 is located 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 driving structure 80 cooperates with the driving of 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 the second liquid surface 2. The controller is electrically connected to 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. Through the above-mentioned 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 from the air inlet, and then the solution can absorb a certain component of the mixed gas. In the process of the reaction between the mixed gas and the solution, a rich liquid and a lean liquid are formed, the rich liquid is located below the lean liquid, the liquid level of the rich liquid away from the lean liquid is the first liquid level 1, and the boundary between the rich liquid and the lean liquid is the second liquid level 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 located above the first liquid level 1 or below the first liquid level 1, that is, the first phase separator 30 can switch 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 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 level 2, that is, the lean liquid can be completely located above the second phase separator 40, which is convenient for the lean liquid to be quickly discharged and completely discharged. The liquid level detection structure can detect the liquid level of the first liquid level 1 and the liquid level of the second liquid level 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 solution of this embodiment effectively solves the problem of poor separation effect of lean liquid and rich liquid in the related art.

[0031] By providing the first phase separator 30 and the second phase separator 40 to separately discharge the lean liquid, it is avoided that the lean liquid and the rich liquid are mixed due to the disturbance of the liquid surface in the prior art, and further when the rich liquid is discharged, part of the lean liquid will flow out with the rich liquid, which makes the separation of the lean liquid and the rich liquid more difficult, that is, the separation effect of the lean liquid and the rich liquid is poor.

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

[0033] When a separate device for separating the lean liquid and the rich liquid is provided outside the tower body 10, the lean liquid and the rich liquid are mixed together and are difficult to separate.

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

[0035] Specifically, the liquid level detection structure can be a liquid level measuring device with application number: CN202111462670.1 and invention name "A liquid level measurement method and device for stratified interface in stratified liquid", and the liquid level can be measured using a liquid level measurement method.

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

[0037] Lean solution refers to a solution that absorbs less carbon dioxide.

[0038] Rich solution refers to a solution that absorbs more carbon dioxide.

[0039] The lean liquid and the rich liquid have different densities, 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] like Figure 1 and Figure 3 As shown, in this embodiment, the liquid outlet structure 70 includes a first liquid outlet pipe 71 and a second liquid outlet pipe 72 connected to the outside of the tower body 10, the first liquid outlet pipe 71 is connected to the bottom of the first phase separator 30, the second liquid outlet pipe 72 is connected to 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 allows the lean liquid in the first phase separator 30 to flow out. The second liquid outlet pipe 72 allows the lean liquid in the second phase separator 40 to flow out.

[0042] like Figure 1 and Figure 2As shown, in this embodiment, the first phase separator 30 includes a separation cylinder 31, and the first liquid outlet pipe 71 is connected to the bottom of the separation cylinder 31. The cross-sectional area of ​​the separation cylinder 31 gradually decreases in the direction from the top of the tower body 10 to the bottom of the tower body 10. Through the above-mentioned 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 in the separation cylinder 31 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 splitter 40 has the same structure as the first phase splitter 30 .

[0044] The vertical 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, it can be 10, 12, 15, 18 or 20.

[0045] Specifically, the absorption tower further includes a guide structure, which is disposed between the inner wall of the tower body 10 and the separation cylinder 31 .

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

[0047] like Figure 1 and Figure 3 As shown, in this embodiment, the carbon dioxide capture device further includes a stop structure 90 disposed in the tower body 10, and the stop structure 90 is disposed 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 at the bottom of the tower body 10 is located within the projection of one end of the first phase separator 30 close to the bottom of the tower body 10 at the bottom of the tower body 10. The projection of one end of the first phase separator 30 close to the top of the tower body 10 at the bottom of the tower body 10 is located at the projection of one end of the first phase separator 30 close to the bottom of the tower body 10 at the bottom of the tower body 10, so that after the solution flows in from the first liquid inlet 20, under the action of the stop structure 90, it can be prevented that the solution directly flows into the first phase separator 30 without reacting with the mixed gas, resulting in waste of the solution, that is, the stop structure 90 can cover the first phase separator 30.

[0048] like Figure 1As shown, in this embodiment, the stop structure 90 includes a guide plate 91 and a support member 92, and the support member 92 is arranged between the separation cylinder 31 and the guide plate 91. The carbon dioxide capture device also has a flow space 100, and the flow space 100 is formed between the guide plate 91 and the separation cylinder 31. In the direction from the top of the tower body 10 to the bottom of the tower body 10, the cross-sectional area of ​​the guide plate 91 gradually increases. By setting the guide plate 91, the flow of the solution can be guided, so that the solution flows from the top of the tower body 10 to the bottom of the tower body 10, and the solution is prevented from accumulating on the guide plate 91. By setting the support member 92, a gap can be provided between the guide plate 91 and the separation cylinder 31, and then a flow space can be formed between the guide plate 91 and the separation cylinder 31, so that the lean liquid can enter the first phase separator 30 through the flow space.

[0049] It should be noted that the support member 92 includes a plurality of support rods, and the plurality of support rods are arranged at intervals on a side of the guide plate 91 facing the bottom of the tower body 10 , so as to facilitate the flow of the lean liquid.

[0050] like Figure 1 As shown, in this embodiment, the driving structure 80 includes a first magnetic member 81 and a second magnetic member 82, the first magnetic member 81 is arranged above the first phase separator 30, the second magnetic member 82 is arranged on the first phase separator 30, and the side of the first magnetic member 81 facing the second magnetic member 82 has the same magnetic properties as the side of the second magnetic member 82 facing the first magnetic member 81. Through the above arrangement, the side of the first magnetic member 81 facing the second magnetic member 82 has the same magnetic properties as the side of the second magnetic member 82 facing the first magnetic member 81, so that under the action of the side of the first magnetic member 81 facing the second magnetic member 82, the second magnetic member 82 can move in a direction away from the first magnetic member 81, and then the second magnetic member 82 can drive the first phase separator 30 to move in a direction away from the first magnetic member 81, that is, the first phase separator 30 moves in a direction close to the second liquid surface 2.

[0051] It should be noted that the driving 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 separation position, the power supply is turned on, and the current provided by the power supply gradually increases, energizing the electromagnet, so that the second magnetic part 82 can move in the direction away from the first magnetic part 81 until the first phase separator 30 is located below the first liquid level 1, that is, the flow space 100 is located below the first liquid level 1, so that the lean liquid can flow out through the first phase separator 30.

[0053] When the lean liquid needs to be completely discharged, the current provided by the power supply is increased so that the first phase separator 30 can continue to move toward the direction close to the second liquid level 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 level 2, at this time, the first phase separator 30 and the second phase separator 40 are both located below the first liquid level 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 includes a surrounding plate 84 , and the second magnetic member 82 is disposed inside the surrounding plate 84 .

[0055] The enclosure plate 84 is disposed on top of the guide plate 91 .

[0056] like Figure 1 and Figure 3 As shown, in this embodiment, the driving structure 80 also includes a transmission member 83 disposed on the first phase separator 30, and the transmission member 83 has a transmission state and an avoidance state. When the transmission member 83 is in the transmission state, the transmission member 83 abuts and cooperates with the second phase separator 40, and when the transmission member 83 is in the avoidance 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 in a direction away from the first magnetic member 81, the transmission member 83 moves to abut and cooperate with 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 in a direction close to the second liquid level 2.

[0057] It should be noted that the transmission member 83 includes 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 toward the bottom of the tower body 10 .

[0058] like Figure 1 As shown, in this embodiment, the carbon dioxide capture device further includes a reflux pipe 110, which is connected between the liquid outlet structure 70 and the first liquid inlet 20. By providing the reflux pipe 110, the lean liquid flowing out through the liquid outlet structure 70 can be refluxed into 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] like Figures 4 to 6 As shown, an annular groove 911 is provided on the guide plate 91 , and an opening of the annular groove 911 is provided on the outer surface of the guide plate 91 .

[0060] The stop structure 90 further includes an elastic member 93 and a limiting block 94 . The elastic member 93 is disposed 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 disposed in the annular groove 911 .

[0061] A connecting block 841 is provided on the inner wall of the enclosure 84, and the connecting block 841 has a first guiding inclined surface 8411 and a second guiding inclined surface 8412 connected to the first guiding inclined surface 8411. The limiting block 94 has an extended position for limiting and cooperating with the connecting block 841 and a retracted position for avoiding the connecting block 841. Such a configuration facilitates the rapid connection and disassembly of the enclosure 84 and the guide plate 91, and facilitates the installation and replacement of the guide plate 91.

[0062] A mounting groove 912 is provided on the top of the guide plate 91 , and the bottom of the enclosure plate 84 is inserted into the mounting groove 912 .

[0063] When the enclosure 84 is connected to the guide plate 91, the enclosure 84 is moved toward the guide plate 91, and the first guide slope 8411 can squeeze the limit block 94 to move toward the inside of the annular groove 911. When the second end of the limit block 94 slides from the first guide slope 8411 to the second guide slope 8412, the limit block 94 gradually moves toward the outside of the annular groove 911 until the second end of the limit block 94 is limitedly engaged with the junction of the second guide slope 8412 and the inner wall of the enclosure 84. At this time, the limit block is in an extended position to prevent the enclosure 84 from falling off the guide plate 91.

[0064] When the enclosure 84 is removed from the guide plate 91, the enclosure 84 is moved in a direction away from the guide plate 91. The second guide slope 8412 of the connecting block 841 arranged on the inner wall of the enclosure 84 can squeeze the limit block 94 to move toward the annular groove 911, that is, the limit block 94 can be moved from the extended position to the retracted position. When the second end of the limit block 94 slides from the second guide slope 8412 to the first guide slope 8411, the enclosure 84 can be removed from the guide plate 91.

[0065] The elastic member 93, the limiting block 94 and the connecting block 841 are all multiple, and the multiple elastic members 93, the multiple limiting blocks 94 and the multiple connecting blocks 841 are arranged one by one, so that the connection between the enclosure 84 and the guide plate 91 is more stable.

[0066] like Figure 1As shown, the carbon dioxide capture system of this embodiment includes a carbon dioxide capture device, and the carbon dioxide capture device is the above-mentioned carbon dioxide capture device. When the above-mentioned carbon dioxide capture device is 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, so that 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 achieved in the tower body 10, and it can be avoided that a separate device for separating the lean liquid and the rich liquid is set outside the tower body 10, thereby avoiding that when a separate device for separating the lean liquid and the rich liquid is set outside the carbon dioxide capture device, the mixed liquid of the rich liquid and the lean liquid enters the separation device, which makes it difficult to separate the rich liquid and the lean liquid. The carbon dioxide capture system with the above-mentioned carbon dioxide capture device also has the above-mentioned advantages.

[0067] like Figure 1 As shown, in this embodiment, the carbon dioxide capture system further includes a first pump body 200, which is connected to the first liquid outlet 60, and the carbon dioxide capture system further includes a second pump body 210, which is arranged on the liquid outlet structure 70. By arranging the first pump body 200, the rich liquid can flow out more quickly through the first liquid outlet 60. By arranging the second pump body 210, the lean liquid can flow out more quickly through the liquid outlet structure.

[0068] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0069] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 100 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0070] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A carbon dioxide capture device, characterized in that: include: Tower body(10); A first liquid inlet (20), wherein the first liquid inlet (20) is arranged on the tower body (10); a first phase separator (30), the first phase separator (30) being arranged in the tower body (10) so as to be movable up and down, the first phase separator (30) having a phase separation position and an avoidance position, when the first phase separator (30) is in the phase separation position, the first phase separator (30) is located between the first liquid surface (1) and the second liquid surface (2), when the first phase separator (30) is in the avoidance position, a part of the structure of the first phase separator (30) is located above the first liquid surface (1); a second phase separator (40), the second phase separator (40) being arranged in the tower body (10) so as to be movable up and down and being located below the first phase separator (30), the second phase separator (40) being arranged below the first liquid surface (1); an air inlet (50), the air inlet (50) being arranged on the tower body (10) and located below the second phase separator (40); a first liquid outlet (60), the first liquid outlet (60) being arranged on the tower body (10) and located below the second phase separator (40); a liquid outlet structure (70), the liquid outlet structure (70) being in communication with both the first phase separator (30) and the second phase separator (40); A driving structure (80), the driving structure (80) drivingly cooperates with the second phase separator (40); a liquid level detection structure, the liquid level detection structure being arranged on the tower body (10) and being capable of detecting the liquid level of the first liquid surface (1) and the liquid level of the second liquid surface (2); A controller is electrically connected to 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 according to claim 1, characterized in that: The liquid outlet structure (70) comprises a first liquid outlet pipe (71) and a second liquid outlet pipe (72) which are connected to the outside of the tower body (10); the first liquid outlet pipe (71) is connected to the bottom of the first phase separator (30); the second liquid outlet pipe (72) is connected to the bottom of the second phase separator (40); and the first liquid outlet pipe (71) is arranged inside the second liquid outlet pipe (72).

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

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

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

6. The carbon dioxide capture device according to claim 4, characterized in that: The driving structure (80) comprises a first magnetic member (81) and a second magnetic member (82), wherein the first magnetic member (81) is arranged above the first phase separator (30), and the second magnetic member (82) is arranged on the first phase separator (30), and the side of the first magnetic member (81) facing the second magnetic member (82) has the same magnetic properties as the side of the second magnetic member (82) facing the first magnetic member (81).

7. The carbon dioxide capture device according to claim 6, characterized in that: The driving structure (80) further comprises a transmission member (83) arranged on the first phase separator (30), wherein the transmission member (83) has a transmission state and an avoidance state. When the transmission member (83) is in the transmission state, the transmission member (83) abuts against and cooperates with the second phase separator (40); when the transmission member (83) is in the avoidance state, the transmission member (83) is separated from the second phase separator (40).

8. The carbon dioxide capture device according to any one of claims 1 to 7, characterized in that: The carbon dioxide capture device further comprises a reflux pipe (110), wherein the reflux pipe (110) is connected between the liquid outlet structure (70) and the first liquid inlet (20).

9. A carbon dioxide capture system, comprising a carbon dioxide capture device, characterized in that: The carbon dioxide capture device is the carbon dioxide capture device according to any one of claims 1 to 8.

10. The carbon dioxide capture system according to claim 9, characterized in that The carbon dioxide capture system further comprises a first pump body (200), the first pump body (200) being in communication with the first liquid outlet (60), and / or the carbon dioxide capture system further comprises a second pump body (210), the second pump body (210) being arranged on the liquid outlet structure (70).

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