Efficient carbon capture and energy-saving regeneration device

Abstract

The utility model discloses an efficient carbon capture and energy-saving regeneration device which comprises a flue gas heat exchanger, a carbon dioxide absorption device and a regeneration mechanism, a cooling mechanism is installed at one end of the flue gas heat exchanger, a treatment mechanism is installed at the end, away from the flue gas heat exchanger, of the cooling mechanism, a carbon dioxide absorption device is installed at one end of the treatment mechanism, and a regeneration mechanism is installed at the end, away from the cooling mechanism, of the carbon dioxide absorption device; a heat exchange mechanism I is mounted between the carbon dioxide absorption device and the regeneration mechanism; according to the utility model, the electrostatic dust collector, the treatment tank, the spraying plate and the power device are matched for use, impurities and particulate matters in flue gas can be adsorbed through the electrostatic dust collector, and an internal alkaline solution is sprayed through the spraying plate through the power device, so that acid gas in the flue gas in the treatment tank can be treated; therefore, the carbon dioxide absorption capability of the ion solution in the carbon dioxide absorption device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon capture, in particular to an efficient carbon capture and energy-saving regeneration device. Background Art

[0002] Carbon dioxide in the atmosphere mainly comes from power generation, transportation, industry, construction, and the respiration of animals and plants. The main sources of anthropogenic carbon dioxide emissions are the combustion of fossil fuels in energy production and transportation. These emissions not only cause the greenhouse effect and trigger climate problems such as glacier melting and sea-level rise, but also carbon dioxide is an important carbon resource that can be applied to multiple fields such as medicine, food, and welding. Therefore, the capture and storage of carbon dioxide are important measures for current carbon dioxide emission control and recycling.

[0003] Flue gas often contains various impurities, which will have a negative impact on the performance of ionic solutions. Acidic gases such as sulfur dioxide in the flue gas will react with the alkaline components in the ionic solution, reducing its carbon dioxide absorption capacity. Among them, dust, carbon black, fly ash, etc. will block the nozzles or pipelines of the equipment, reduce the absorption efficiency, increase the maintenance cost of the equipment, and affect the normal operation of the equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide an efficient carbon capture and energy-saving regeneration device. By using an electrostatic precipitator, a treatment tank, a spray plate, and a power device in cooperation, the electrostatic precipitator can adsorb and treat impurities and particulate matters in the flue gas. The internal alkaline solution is sprayed through the spray plate by the power device, which can treat the acidic gases in the flue gas inside the treatment tank, thereby improving the carbon dioxide absorption capacity of the ionic solution inside the carbon dioxide absorption device.

[0005] The utility model adopts the following technical scheme: An efficient carbon capture and energy-saving regeneration device, comprising a flue gas heat exchanger, a carbon dioxide absorption device, and a regeneration mechanism; A cooling mechanism is installed at one end of the flue gas heat exchanger, a treatment mechanism is installed at the end of the cooling mechanism away from the flue gas heat exchanger, a carbon dioxide absorption device is installed at one end of the treatment mechanism, a regeneration mechanism is installed at the end of the carbon dioxide absorption device away from the cooling mechanism, a heat exchange mechanism I is installed between the carbon dioxide absorption device and the regeneration mechanism, a heat exchange mechanism II is arranged below the heat exchange mechanism I, and a reboiler is installed at one end of the regeneration mechanism;

[0006] The treatment mechanism includes an electrostatic precipitator, a treatment tank, a spray plate, and a power device. The electrostatic precipitator is installed at the end of the cooling mechanism away from the flue gas heat exchanger, the treatment tank is installed at one end of the electrostatic precipitator, the spray plate is installed inside the treatment tank, and the power device is installed on the side of the treatment tank;

[0007] The cooling mechanism includes a cooling tower, a spray pipe, and a circulation pump. One end of the flue gas heat exchanger is equipped with a cooling tower, the spray pipe is installed inside the cooling tower, and the circulation pump is installed on the side of the cooling mechanism;

[0008] The carbon dioxide absorption device includes a carbon dioxide absorption tower, a lower tower 1, an upper tower 1, and a liquid distribution tray 1. One end of the treatment mechanism is equipped with a carbon dioxide absorption tower, a liquid distribution tray 1 is installed at the central position inside the carbon dioxide absorption tower, a lower tower 1 is provided at the bottom near the liquid distribution tray 1 inside the carbon dioxide absorption tower, and an upper tower 1 is provided at the top near the liquid distribution tray 1 inside the carbon dioxide absorption tower;

[0009] The regeneration mechanism includes a regeneration tower, a lower tower 2, an upper tower 2, a liquid distribution tray 2, a catalytic filler, a spray pipe 1, and a spray pipe 2. One end of the carbon dioxide absorption device away from the cooling mechanism is equipped with a regeneration tower, a liquid distribution tray 2 is installed at the central position inside the regeneration tower, a lower tower 2 is provided at the bottom near the liquid distribution tray 2 inside the regeneration tower, an upper tower 2 is provided at the top near the liquid distribution tray 2 inside the regeneration tower, a catalytic filler is provided inside the lower tower 2, a spray pipe 1 is installed at the top near the catalytic filler in the lower tower 2, and a spray pipe 2 is installed inside the upper tower 2.

[0010] Preferably, a first ionic solution spray pipe is installed inside the lower tower 1, a conveying device 1 is installed on the side of the carbon dioxide absorption tower near the first ionic solution spray pipe, a second ionic solution spray pipe is installed inside the upper tower 1, and a conveying device 2 is installed on the side of the carbon dioxide absorption tower near the second ionic solution spray pipe.

[0011] Preferably, the heat exchange mechanism 1 includes a rich and lean liquid heat exchanger, a lean liquid pump, a rich liquid pump, and a lean liquid condenser. A rich liquid pump is installed between the carbon dioxide absorption device and the regeneration mechanism, the output end of the rich liquid pump is equipped with a rich and lean liquid heat exchanger, a lean liquid pump is installed at the bottom of the rich and lean liquid heat exchanger, and a lean liquid condenser is installed at the top of the rich and lean liquid heat exchanger.

[0012] Preferably, the input end of the rich liquid pump is connected to the carbon dioxide absorption device, the output end of the rich liquid pump is connected to the rich and lean liquid heat exchanger, the input end of the lean liquid pump is connected to the first ionic solution spray pipe, and the output end of the lean liquid pump is connected to the rich and lean liquid heat exchanger.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] By using the electrostatic precipitator, the treatment tank, the spray plate, and the power device in cooperation, the electrostatic precipitator can adsorb and treat impurities and particulate matters in the flue gas, and the power device sprays the internal alkaline solution through the spray plate to treat the acidic gas in the flue gas inside the treatment tank, thereby improving the absorption capacity of the ionic solution inside the carbon dioxide absorption device for carbon dioxide. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the cooling mechanism in the present utility model;

[0017] Figure 3 is a schematic structural diagram of the treatment tank in the present utility model;

[0018] Figure 4 is a schematic structural diagram of the carbon dioxide absorption device in the present utility model;

[0019] Figure 5 is a schematic structural diagram of the regeneration mechanism in the present utility model.

[0020] In the figure:

[0021] 1. Flue gas heat exchanger;

[0022] 2. Cooling mechanism; 201. Cooling tower; 202. Spray pipe; 203. Circulation pump;

[0023] 3. Carbon dioxide absorption device; 301. Carbon dioxide absorption tower; 302. Lower tower one; 303. Upper tower one; 304. Liquid separation plate one;

[0024] 4. First ionic solution spray pipe; 401. Conveying device one;

[0025] 5. Second ionic solution spray pipe; 501. Conveying device two;

[0026] 6. Regeneration mechanism; 601. Regeneration tower; 602. Lower tower two; 603. Upper tower two; 604. Liquid separation plate two; 605. Catalytic filler; 606. Spray pipe one; 607. Spray pipe two;

[0027] 7. Heat exchange mechanism one; 701. Rich and lean liquid heat exchanger; 702. Lean liquid pump; 703. Rich liquid pump; 704. Lean liquid condenser;

[0028] 8. Heat exchange mechanism two;

[0029] 9. Reboiler;

[0030] 10. Treatment mechanism; 1001. Electrostatic precipitator; 1002. Treatment tank; 1003. Spray plate; 1004. Power device. Detailed Description of the Preferred Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] The following further elaborates on the technical solutions of the present utility model in conjunction with the accompanying drawings of the specification and specific embodiments;

[0035] Embodiment 1:

[0036] An efficient carbon capture and energy-saving regeneration device provided by the present utility model includes a flue gas heat exchanger 1, a carbon dioxide absorption device 3, and a regeneration mechanism 6; a cooling mechanism 2 is installed at one end of the flue gas heat exchanger 1, a treatment mechanism 10 is installed at the end of the cooling mechanism 2 away from the flue gas heat exchanger 1, a carbon dioxide absorption device 3 is installed at one end of the treatment mechanism 10, a regeneration mechanism 6 is installed at the end of the carbon dioxide absorption device 3 away from the cooling mechanism 2, a heat exchange mechanism I 7 is installed between the carbon dioxide absorption device 3 and the regeneration mechanism 6, a heat exchange mechanism II 8 is arranged below the heat exchange mechanism I 7, and a reboiler 9 is installed at one end of the regeneration mechanism 6;

[0037] The treatment mechanism 10 includes an electrostatic precipitator 1001, a treatment tank 1002, a spray plate 1003, and a power device 1004. One end of the cooling mechanism 2 away from the flue gas heat exchanger 1 is equipped with an electrostatic precipitator 1001. One end of the electrostatic precipitator 1001 is equipped with a treatment tank 1002. The spray plate 1003 is installed inside the treatment tank 1002, and the power device 1004 is installed on the side of the treatment tank 1002;

[0038] Specifically, as Figure 1 and Figure 3 shown, the high-temperature flue gas enters from the flue gas heat exchanger 1, is indirectly cooled by cold water to 90 - 100 °C, and the flue gas after heat exchange in the flue gas heat exchanger 1 is transported to the inside of the cooling mechanism 2 to be cooled to 40 °C. Then the flue gas is transported to the inside of the electrostatic precipitator 1001. By using the electrostatic adsorption principle in the electrostatic precipitator 1001, the impurities and particulate matter in the flue gas can be adsorbed and treated. The power device 1004 consists of a storage tank and a delivery pump. When the flue gas is transported to the inside of the treatment tank 1002, the alkaline solution inside is sprayed through the spray plate 1003 by the power device 1004, and then the acidic gas in the flue gas is treated. Then the flue gas is transported from the top of the treatment tank 1002 to the inside of the carbon dioxide absorption device 3. The carbon dioxide in the flue gas is absorbed and then discharged from the top of the carbon dioxide absorption device 3 to the outside of the tower. Through the regeneration mechanism 6, the heat exchange mechanism I 7, the heat exchange mechanism II 8, and the reboiler 9, the ionic solution can be heat-exchanged, regenerated, and reused.

[0039] The cooling mechanism 2 includes a cooling tower 201, a spray pipe 202, and a circulation pump 203. One end of the flue gas heat exchanger 1 is equipped with a cooling tower 201. The spray pipe 202 is installed inside the cooling tower 201, and the circulation pump 203 is installed on the side of the cooling mechanism 2;

[0040] Specifically, as Figure 2 shown, in order to achieve the cooling treatment of the flue gas, the flue gas after heat exchange in the flue gas heat exchanger 1 is transported to the inside of the cooling tower 201. Then the cooling water is transported to the spray pipe 202 by the circulation pump 203. The flue gas contacts the circulating cooling water sprayed from the spray pipe 202 in a countercurrent manner and is cooled to 40 °C. Then the flue gas is transported from the top of the cooling tower 201 to the inside of the carbon dioxide absorption device 3.

[0041] The carbon dioxide absorption device 3 includes a carbon dioxide absorption tower 301, a lower tower I 302, an upper tower I 303, and a liquid distribution plate I 304. One end of the treatment mechanism 10 is equipped with a carbon dioxide absorption tower 301. A liquid distribution plate I 304 is installed at the central position inside the carbon dioxide absorption tower 301. A lower tower I 302 is provided at the bottom inside the carbon dioxide absorption tower 301 near the liquid distribution plate I 304, and an upper tower I 303 is provided at the top inside the carbon dioxide absorption tower 301 near the liquid distribution plate I 304;

[0042] Specifically, as Figure 4 shown, in order to achieve carbon dioxide absorption, a first ionic solution is installed in the inner cavity of the lower tower 302, and a second ionic solution is installed in the inner cavity of the upper tower 303. The second ionic solution is a DEA solution, and the first ionic solution is a potassium carbonate solution. When the flue gas is transported to the inside of the carbon dioxide absorption tower 301, the flue gas will pass through the inside of the lower tower 302 and contact the internal solution, absorbing most of the carbon dioxide. Then, the remaining flue gas passes through the first liquid separation disk 304 and enters the upper tower 303, where it contacts the internal solution to absorb the remaining carbon dioxide in the flue gas, and then is discharged from the top of the carbon dioxide absorption tower 301.

[0043] Furthermore, a first ionic solution spray pipe 4 is installed inside the lower tower 302, a conveying device 401 is installed on the side of the carbon dioxide absorption tower 301 close to the first ionic solution spray pipe 4, a second ionic solution spray pipe 5 is installed inside the upper tower 303, and a conveying device 501 is installed on the side of the carbon dioxide absorption tower 301 close to the second ionic solution spray pipe 5;

[0044] Specifically, as Figure 4 shown, in order to achieve the transportation of the internal solutions of the upper tower 303 and the lower tower 302, the conveying device 401 is composed of a solution storage tank and a delivery pump. The conveying device 401 and the conveying device 501 have the same structure. The first ionic solution is stored inside the conveying device 401, and the second ionic solution is stored inside the conveying device 501. The first ionic solution is transported to the inside of the lower tower 302 for use through the conveying device 401. The first ionic solution spray pipe 4 can transport the regenerated ionic liquid to the inside of the lower tower 302 for use. The second ionic solution is transported to the inside of the upper tower 303 for use through the conveying device 501. The second ionic solution spray pipe 5 can transport the regenerated ionic liquid to the inside of the upper tower 303 for use.

[0045] The regeneration mechanism 6 includes a regeneration tower 601, a lower tower 602, an upper tower 603, a second liquid separation disk 604, a catalytic filler 605, a first spray pipe 606, and a second spray pipe 607. The regeneration tower 601 is installed at one end of the carbon dioxide absorption device 3 away from the cooling mechanism 2. A second liquid separation disk 604 is installed at the central position inside the regeneration tower 601. The lower tower 602 is provided at the bottom inside the regeneration tower 601 close to the second liquid separation disk 604. The upper tower 603 is provided at the top inside the regeneration tower 601 close to the second liquid separation disk 604. The catalytic filler 605 is provided inside the lower tower 602. The first spray pipe 606 is installed at the top of the lower tower 602 close to the catalytic filler 605. The second spray pipe 607 is installed inside the upper tower 603;

[0046] Specifically, as Figure 5As shown in the figure, in order to realize the regeneration of the solution, the catalytic packing 605 is a ceramic structured packing with noble metals platinum and palladium attached to its surface. The first spray pipe 606 is used to spray the first ionic solution, and the second spray pipe 607 is used to spray the second ionic solution. The inner cavity of the lower tower two 602 is filled with the first ionic solution, and the inner cavity of the upper tower two 603 is filled with the second ionic solution. The first ionic solution in the lower tower two 602 enters the reboiler 9, and after indirectly exchanging heat with the hot water provided by the flue gas heat exchanger 1, it enters to heat the rich liquid of the first ionic solution in the lower tower two 602. At the same time, under the action of the catalytic packing 605, the carbon dioxide gas in the rich liquid of the first ionic solution is separated and continues to rise, passes through the liquid separation and suction tray two 604, and then enters the upper tower two 603 to contact the rich liquid of the second ionic solution reversely, heating the rich liquid of the second ionic solution, and the carbon dioxide gas is separated and discharged from the top of the regeneration tower 601.

[0047] Furthermore, the heat exchange mechanism one 7 includes a rich and lean liquid heat exchanger 701, a lean liquid pump 702, a rich liquid pump 703, and a lean liquid condenser 704. A rich liquid pump 703 is installed between the carbon dioxide absorption device 3 and the regeneration mechanism 6. The output end of the rich liquid pump 703 is installed with a rich and lean liquid heat exchanger 701. The bottom of the rich and lean liquid heat exchanger 701 is installed with a lean liquid pump 702, and the top of the rich and lean liquid heat exchanger 701 is installed with a lean liquid condenser 704;

[0048] Furthermore, the input end of the rich liquid pump 703 is connected to the carbon dioxide absorption device 3, the output end of the rich liquid pump 703 is connected to the rich and lean liquid heat exchanger 701, the input end of the lean liquid pump 702 is connected to the first ionic solution spray pipe 4, and the output end of the lean liquid pump 702 is connected to the rich and lean liquid heat exchanger 701;

[0049] Specifically, as Figure 1 and Figure 4 shown, in order to realize the regeneration cycle of the two ionic solutions, the heat exchange mechanism one 7 and the heat exchange mechanism two 8 have the same structure. The heat exchange mechanism two 8 is connected to the upper tower two 603 and the second ionic solution spray pipe 5. The lean liquid condenser 704 can cool the lean liquid. The lean liquid of the first ionic solution in the lower tower two 602 enters the rich and lean liquid heat exchanger 701 through the lean liquid pump 702 to indirectly exchange heat with cold water and cool down, and enters the first ionic solution spray pipe 4 from one side of the rich and lean liquid heat exchanger 701. The lean liquid of the second ionic solution in the upper tower two 603 enters the second ionic solution spray pipe 5 from the heat exchange mechanism two 8, and the two ionic solutions complete the regeneration cycle.

[0050] The working process of the present utility model:

[0051] High-temperature flue gas enters from the flue gas heat exchanger 1, is indirectly cooled to 90 - 100 °C by exchanging heat with cold water, and the flue gas that has exchanged heat in the flue gas heat exchanger 1 is transported to the inside of the cooling tower 201. Then, the cooling water is transported to the spray pipe 202 through the circulating pump 203. The flue gas comes into reverse contact with the circulating cooling water sprayed from the spray pipe 202 and is cooled to 40 °C. Then, the flue gas is transported to the inside of the electrostatic precipitator 1001, and the impurities and particulate matters in the flue gas are adsorbed and treated by the electrostatic precipitator 1001. When the flue gas is transported to the inside of the treatment tank 1002, the alkaline solution inside is sprayed through the spray plate 1003 by the power device 1004, and then the acidic gas in the flue gas is treated. Then, the flue gas is transported from the top of the treatment tank 1002 to the inside of the carbon dioxide absorption tower 301. The flue gas passes through the lower tower 302 and comes into contact with the solution inside, absorbing most of the carbon dioxide. Then, the remaining flue gas enters the upper tower 303 after passing through the liquid separation plate 304 and comes into contact with the solution inside, absorbing the remaining carbon dioxide in the flue gas. Then, it is discharged from the top of the carbon dioxide absorption tower 301. Then, through the regeneration mechanism 6, the heat exchange mechanism 7, the heat exchange mechanism 8, and the reboiler 9, the ionic solution can be heat-exchanged and recycled for reuse.

[0052] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An efficient carbon capture and energy-saving regeneration device, comprising a flue gas heat exchanger (1), a carbon dioxide absorption device (3) and a regeneration mechanism (6); characterized in that: A cooling mechanism (2) is installed at one end of the flue gas heat exchanger (1); a treatment mechanism (10) is installed at one end of the cooling mechanism (2) away from the flue gas heat exchanger (1); a carbon dioxide absorption device (3) is installed at one end of the treatment mechanism (10); a regeneration mechanism (6) is installed at one end of the carbon dioxide absorption device (3) away from the cooling mechanism (2); a heat exchange mechanism (1) (7) is installed between the carbon dioxide absorption device (3) and the regeneration mechanism (6); a heat exchange mechanism (2) (8) is arranged below the heat exchange mechanism (1); and a reboiler (9) is installed at one end of the regeneration mechanism (6); The treatment mechanism (10) comprises an electrostatic precipitator (1001), a treatment tank (1002), a spray plate (1003) and a power device (1004); the cooling mechanism (2) is provided with an electrostatic precipitator (1001) at one end away from the flue gas heat exchanger (1); the treatment tank (1002) is provided at one end of the electrostatic precipitator (1001); the treatment tank (1002) is provided with a spray plate (1003) inside the treatment tank (1002); and the power device (1004) is provided on the side of the treatment tank (1002); The cooling mechanism (2) comprises a cooling tower (201), a spray pipe (202) and a circulation pump (203); the cooling tower (201) is installed at one end of the flue gas heat exchanger (1); the interior of the cooling tower (201) is installed with a spray pipe (202); and the side of the cooling mechanism (2) is installed with a circulation pump (203); The carbon dioxide absorption device (3) comprises a carbon dioxide absorption tower (301), a lower tower (302), an upper tower (303) and a liquid separation plate (304); the carbon dioxide absorption tower (301) is installed at one end of the processing mechanism (10); a liquid separation plate (304) is installed at a central position inside the carbon dioxide absorption tower (301); a lower tower (302) is provided near the bottom of the liquid separation plate (304) inside the carbon dioxide absorption tower (301); and an upper tower (303) is provided near the top of the liquid separation plate (304) inside the carbon dioxide absorption tower (301); The regeneration mechanism (6) comprises a regeneration tower (601), a lower tower (602), an upper tower (603), a liquid separation plate (604), a catalytic filler (605), a spray pipe (606) and a spray pipe (607). The regeneration tower (601) is installed at one end of the carbon dioxide absorption device (3) away from the cooling mechanism (2). The liquid separation plate (604) is installed at the central position inside the regeneration tower (601). The lower tower (602) is installed near the bottom of the liquid separation plate (604) inside the regeneration tower (601). The upper tower (603) is installed near the top of the liquid separation plate (604) inside the regeneration tower (601). The catalytic filler (605) is installed inside the lower tower (602). The spray pipe (606) is installed near the top of the catalytic filler (605) of the lower tower (602). The spray pipe (607) is installed inside the upper tower (603).

2. The highly efficient carbon capture and energy-saving regeneration device according to claim 1, characterized in that: A first ion solution spray pipe (4) is installed inside the lower tower (302), a conveying device (401) is installed on the side of the carbon dioxide absorption tower (301) close to the first ion solution spray pipe (4), a second ion solution spray pipe (5) is installed inside the upper tower (303), and a conveying device (501) is installed on the side of the carbon dioxide absorption tower (301) close to the second ion solution spray pipe (5).

3. The highly efficient carbon capture and energy-saving regeneration device according to claim 1, characterized in that: The heat exchange mechanism (7) comprises a lean-rich liquid heat exchanger (701), a lean liquid pump (702), a rich liquid pump (703) and a lean liquid condenser (704); the rich liquid pump (703) is installed between the carbon dioxide absorption device (3) and the regeneration mechanism (6); the lean-rich liquid heat exchanger (701) is installed at the output end of the rich liquid pump (703); the lean liquid pump (702) is installed at the bottom of the lean-rich liquid heat exchanger (701); and the lean liquid condenser (704) is installed at the top of the lean-rich liquid heat exchanger (701).

4. The highly efficient carbon capture and energy-saving regeneration device according to claim 3, characterized in that: The input end of the rich liquid pump (703) is connected to the carbon dioxide absorption device (3), the output end of the rich liquid pump (703) is connected to the lean-rich liquid heat exchanger (701), the input end of the lean liquid pump (702) is connected to the first ion solution spray pipe (4), and the output end of the lean liquid pump (702) is connected to the lean-rich liquid heat exchanger (701).

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