A low-temperature phase transition composite carbon dioxide capture device

Abstract

This invention discloses a low-temperature phase change composite carbon dioxide capture device, belonging to the field of carbon dioxide capture technology. It includes: a capture box, a partition and protection mechanism, a capture mechanism, and an exhaust and purification mechanism. A gas supply pipe is fixedly connected to the capture box. The partition and protection mechanism includes a support frame with a pair of contraction cavities, each containing a first, second, third, and fourth barrier plate. The capture mechanism includes a first and a second capture frame, both filled with a mixture of natural zeolite, molecular sieves, and activated alumina. This invention improves the carbon dioxide capture effect by optimizing the corresponding mechanisms of the carbon dioxide capture device, preventing carbon dioxide leakage during the capture process, thereby increasing resource utilization, avoiding resource waste, and reducing capture costs.

Description

TECHNICAL FIELD

[0001] The application relates to a carbon dioxide capturing device, in particular to a low-temperature phase change composite carbon dioxide capturing device, and belongs to the technical field of carbon dioxide capturing. BACKGROUND

[0002] Carbon dioxide is a carbon oxide with a chemical formula of CO2, is a colorless, odorless or colorless, odorless gas with a slightly sour aqueous solution at room temperature and normal pressure, and is one of the main components of greenhouse gases causing global climate warming.

[0003] In the prior art, the carbon dioxide capturing device still discharges a large amount of carbon dioxide in the capturing process, not only still causes bad influence on the environment, but also causes a large amount of resources to be wasted due to poor capturing effect, and further causes high capturing cost. SUMMARY

[0004] In view of the defects of the prior art, the application provides a low-temperature phase change composite carbon dioxide capturing device, which can realize that no carbon dioxide is leaked in the capturing process, and further realizes improvement of resource utilization, improvement of carbon dioxide capturing effect and reduction of carbon dioxide capturing cost.

[0005] In order to achieve the above purpose, the low-temperature phase change composite carbon dioxide capturing device comprises a capturing box, a partition protection mechanism, a capturing mechanism, an exhaust mechanism and a purification mechanism.

[0006] The capturing box is fixedly connected with a gas supply pipe;

[0007] The partition protection mechanism is arranged in the capturing box, and the partition protection mechanism comprises a support frame, a pair of contraction cavities are opened in the support frame, and a first blocking plate, a second blocking plate, a third blocking plate and a fourth blocking plate are respectively inserted in the pair of contraction cavities.

[0008] The capturing mechanism is arranged on both sides of the support frame, and the capturing mechanism comprises a first capturing frame and a second capturing frame.

[0009] The exhaust mechanism is fixed on the capturing box, and the exhaust mechanism is used for receiving the resolved carbon dioxide.

[0010] Further, the capture box is provided with a groove, which facilitates the sealing protrusion to be clamped in the groove, so that the rotating cover plate drives the first capture frame and the second capture frame to rotate without causing leakage, thereby improving the sealing performance of the device.

[0011] The rotating cover plate is connected with a sealing protrusion matched with the groove, which is used to be clamped in the groove, thereby improving the sealing performance of the device.

[0012] The transmission support shaft is connected with the support frame through a fixed bearing, so that the rotation of the transmission support shaft will not affect the stability of the support frame.

[0013] Further, the bottom of the capture box is provided with a curved groove, which facilitates the flow of the resolved carbon dioxide.

[0014] The control ball valve is provided with an adjusting turntable, which is used to control the opening and closing of the control ball valve, so as to control whether the carbon dioxide can be discharged.

[0015] Further, the first barrier plate, the second barrier plate, the third barrier plate and the fourth barrier plate are provided with a plurality of evenly distributed driven racks, which facilitate the movement of the first barrier plate, the second barrier plate, the third barrier plate and the fourth barrier plate.

[0016] When the first and second capture frames need to be swapped, the second motors corresponding to the first and third baffles are first activated. Through the transmission gears, the first and third baffles are driven to retract into the shrinkage chamber. Then, the cover plate is rotated to drive the first and second capture frames into the support frame. Then, the second motors are activated in reverse to reset the first and third baffles. Then, the second motors corresponding to the second and fourth baffles are activated again, so that the first and second capture frames can be swapped, and the loss of heat and carbon dioxide during the swapping process is minimal.

[0017] Furthermore, a fixed lever is fixedly connected between the first and second trapping frames and the rotating cover plate, which enables the rotating cover plate to support the first and second trapping frames and drive the first and second trapping frames to rotate. A limit plate is provided between the first and second trapping frames to support the mixture including natural zeolite, molecular sieve and activated alumina, and to prevent the mixture from falling off.

[0018] The limiting plate has multiple evenly distributed ventilation holes to facilitate gas flow, allowing the desorbed carbon dioxide to be discharged from the lower drain hole, making it convenient for staff to collect.

[0019] Furthermore, a first sealing plate and a second sealing plate are respectively provided on both sides of the second collection frame, both of which are used to seal the lower leakage holes on both sides of the first collection frame and the second collection frame, so that the carbon dioxide decomposed during the cooling process can be discharged from the lower leakage holes. The first sealing plate is fixed on the support frame to prevent the first sealing plate from falling off, and the second sealing plate is fixed on the collection box.

[0020] A leak-proof plate is provided below the second collection frame to seal the lower leakage hole and prevent carbon dioxide leakage. The leak-proof plate has holes so that the exhaust pipe can penetrate into the second collection frame to facilitate the collection of the desorbed carbon dioxide.

[0021] In addition, both the first and second sealing plates have cavities filled with sodium chloride aqueous solution to increase the cooling rate of the mixture and thus increase the rate of carbon dioxide desorption.

[0022] Furthermore, a pair of pressure push plates are provided inside the collection box to compress the gas in the high-temperature absorption chamber, thereby increasing the pressure and improving the carbon dioxide absorption effect. A piston cylinder is provided below the pressure push plate to push the pressure push plate, so that the pressure push plate can rise, thereby compressing the gas and reducing the volume of the high-temperature absorption chamber. The piston cylinder is fixed on the collection box, and a push rod is connected between the pressure push plate and the piston cylinder.

[0023] Furthermore, the exhaust mechanism includes an exhaust pipe for guiding the desorbed carbon dioxide into the curved groove, thereby facilitating its discharge. A support ring is fitted on the exhaust pipe to limit its descent, preventing it from descending further. The support ring is fixed to the collection box to prevent it from falling off.

[0024] A trigger block is fixed on the support ring. The control box can control the start of the first motor by contacting the exhaust pipe with the trigger block, and then control the first and second collection frames to switch positions. A shape memory alloy block is installed on the exhaust pipe.

[0025] When the shape memory alloy block heats up, it expands outward, allowing it to lock onto the second trap frame and prevent the exhaust pipe from sliding downward, thus avoiding carbon dioxide leakage. When the shape memory alloy block cools down, it shrinks back to its original size, allowing the exhaust pipe to be retracted by the support spring, facilitating the swapping of the positions of the first and second trap frames.

[0026] Furthermore, a fixing ring plate is fixed on the exhaust pipe to drive the exhaust pipe to rise. An electric push rod is provided below the fixing ring plate to push the fixing ring plate to rise, thereby driving the exhaust pipe to rise. The electric push rod will automatically close after being started for a period of time. After the shape memory alloy block expands and locks itself, the electric push rod will no longer have an upward thrust. As a result, after the shape memory alloy block shrinks back to its original size, the exhaust pipe can be pulled down automatically by the support spring and will no longer be inserted into the first or second trap frame, which facilitates the control of the rotation of the first and second trap frames.

[0027] The electric push rod is equipped with a piston rod, and a support spring is connected between the fixed ring plate and the collection box to pull the fixed ring plate, thereby driving the exhaust pipe to reset.

[0028] Furthermore, a purification mechanism is provided on the outside of the collection box. The purification mechanism includes a fixed storage frame filled with calcium hydroxide solution. By passing gas into the calcium hydroxide solution, a small amount of carbon dioxide in the gas can react with the calcium hydroxide to improve the removal effect of carbon dioxide.

[0029] The fixed storage frame is equipped with a fixed plate, and the fixed plate has multiple exhaust holes to facilitate the discharge of gas. The fixed storage frame is connected to a connecting pipe, so that the gas in the cooling and desorption chamber can be discharged into the fixed storage frame through the connecting pipe.

[0030] Compared with existing technologies, this low-temperature phase change composite carbon dioxide capture device improves the carbon dioxide capture effect through the setting of corresponding mechanisms, so that there is no carbon dioxide leakage during the capture process, thereby improving resource utilization, avoiding resource waste, and reducing carbon dioxide capture costs. Attached Figure Description

[0031] Figure 1 A cross-sectional view of a low-temperature phase change composite carbon dioxide capture device;

[0032] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0033] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0034] Figure 4 for Figure 1 A magnified view of a portion of point C in the middle;

[0035] Figure 5 for Figure 1 A magnified view of a portion of point D;

[0036] Figure 6 for Figure 1 A magnified view of a portion of point E in the middle;

[0037] Figure 7 A perspective view of the exterior of a low-temperature phase change composite carbon dioxide capture device;

[0038] Figure 8 for Figure 7 A magnified view of a portion of point F in the middle;

[0039] Figure 9 for Figure 7 A schematic diagram of the structure after removing the rotating cover plate;

[0040] Figure 10 for Figure 9 A magnified view of a portion of point G in the middle;

[0041] Figure 11 This is a schematic diagram of the partition and protection mechanism of the present invention;

[0042] Figure 12 This is a schematic diagram of the barrier plate of the present invention;

[0043] Figure 13 for Figure 12 A magnified view of a portion of point H in the middle;

[0044] Figure 14 This is a schematic diagram of the trapping mechanism of the present invention;

[0045] Figure 15 This is a schematic diagram of the anti-leakage plate of the present invention;

[0046] Figure 16 This is a schematic diagram of the pressure pusher plate of the present invention.

[0047] In the diagram: 1. Collection box; 101. Air supply pipe; 102. Rotating cover plate; 103. Sealing strip; 104. First motor; 105. Transmission support shaft; 106. Fixed bearing; 107. Exhaust pipe; 108. Control ball valve; 109. Adjusting turntable; 110. Control lever; 2. Isolation and protection mechanism; 201. Support frame; 202. Contraction chamber; 203. First baffle plate; 204. Second baffle plate; 205. Third baffle plate; 206. Fourth baffle plate; 207. Driven rack; 208. Transmission gear; 209. Transmission rod; 210. Second motor; 3. Collection mechanism; 301. First collection frame; 302. Second collection frame Frame; 303, Lower leakage hole; 304, Fixed lever; 305, Limiting plate; 306, Vent hole; 307, First sealing plate; 308, Second sealing plate; 309, Leakage prevention plate; 310, Hole; 311, Pressurizing push plate; 312, Piston cylinder; 313, Push rod; 4, Exhaust mechanism; 401, Exhaust pipe; 402, Support ring; 403, Trigger block; 404, Shape memory alloy block; 405, Fixed ring plate; 406, Electric push rod; 407, Support spring; 5, Purification mechanism; 501, Fixed storage frame; 502, Fixed plate; 503, Exhaust hole; 504, Connecting pipe; 505, Air pump; 506, Air supply pipe; 6, Control box. Detailed Implementation

[0048] Low-temperature phase change materials are materials that change from solid to liquid or vice versa at low temperatures (<200℃), during which latent heat is absorbed or released. This process can resolve the imbalance between energy supply and demand in time and space, effectively improving energy utilization. This application is based on low-temperature phase change.

[0049] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings.

[0050] Reference Figures 1 to 16 A low-temperature phase change composite carbon dioxide capture device includes: a capture box 1, an isolation and protection mechanism 2, a capture mechanism 3, an exhaust mechanism 4, and a purification mechanism 5.

[0051] Reference Figures 1 to 2A gas supply pipe 101 is fixedly connected to the collection box 1 for discharging gas containing a large amount of carbon dioxide into the collection box 1. The collection box 1 has grooves cut out to facilitate the insertion of the sealing protrusion 103, so that the rotating cover plate 102 can rotate the first collection frame 301 and the second collection frame 302 without causing leakage, thus improving the sealing performance of the device. The rotating cover plate 102 on the collection box 1 is used to support the first collection frame 301 and the second collection frame 302, thereby providing support for multiple mixtures and having the function of driving the first collection frame 301 and the second collection frame 302 to rotate.

[0052] The rotating cover plate 102 is connected to a sealing protrusion 103 that matches the groove, which is used to lock into the groove and improve the sealing performance of the device.

[0053] Reference Figures 1 to 3 The first motor 104 is installed inside the collection box 1 to drive the transmission support shaft 105 to rotate, thereby providing power for the rotation of the first collection frame 301 and the second collection frame 302. The first motor 104 is connected to the transmission support shaft 105 to drive the rotating cover plate 102 to rotate, and has the function of transmitting power. The other end of the transmission support shaft 105 is fixedly connected to the rotating cover plate 102.

[0054] A fixed bearing 106 is connected between the transmission support shaft 105 and the support frame 201, so that the rotation of the transmission support shaft 105 is not affected by the support frame 201 and the rotation of the transmission support shaft 105 does not affect the stability of the support frame 201.

[0055] Reference Figures 1 to 6 The bottom of the collection box 1 is chiseled with a curved groove to facilitate the flow of the desorbed carbon dioxide. An exhaust pipe 107 is installed in the curved groove for the discharge of carbon dioxide. The staff connects one end of the exhaust pipe 107 to the collection bottle, and then the carbon dioxide is discharged into the collection bottle through the exhaust pipe 107 to achieve the collection of carbon dioxide.

[0056] Reference Figure 6 A control ball valve 108 is installed on the exhaust pipe 107, providing space for the rotation of the adjusting disc 109. The adjusting disc 109 is located inside the control ball valve 108, used to control the opening and closing of the control ball valve 108, thereby controlling whether carbon dioxide can be discharged. A control lever 110 is fixedly connected to the adjusting disc 109, used to control the rotation of the adjusting disc 109, thus facilitating the operator's control of carbon dioxide discharge.

[0057] Reference Figures 1 to 11The isolation and protection mechanism 2 is located inside the collection box 1. The isolation and protection mechanism 2 includes a support frame 201, which is used to divide the inside of the collection box 1. A high-temperature absorption chamber and a cooling and desorption chamber are formed between the two sides of the support frame 201 and the collection box 1, respectively. Multiple heating tubes are provided on the support frame 201 to facilitate heating of the mixture and thus create a high-temperature environment. A pair of contraction chambers 202 are cut into the support frame 201 to store the first barrier plate 203, the second barrier plate 204, the third barrier plate 205, and the fourth barrier plate 206. The first barrier plate 203, the second barrier plate 204, the third barrier plate 205, and the fourth barrier plate 206 are respectively inserted into the pair of contraction chambers 202.

[0058] Preferably, the mixture in the high-temperature absorption chamber can absorb carbon dioxide in a high-temperature environment, thereby achieving carbon dioxide collection. Then, the mixture is rotated and moved into the cooling and desorption chamber, causing the temperature of the mixture to drop. After the temperature drops, the mixture will desorb the carbon dioxide.

[0059] In addition, by receiving the first barrier plate 203 and the third barrier plate 205 into the contraction cavity 202, and then controlling the rotation of the first capture frame 301 and the second capture frame 302, the first capture frame 301 and the second capture frame 302 are first transferred into the support frame 201. Then, the first barrier plate 203 and the third barrier plate 205 are reset to achieve isolation. Then, the second barrier plate 204 and the fourth barrier plate 206 are received into the contraction cavity 202, and then the first capture frame 301 and the second capture frame 302 continue to rotate. Finally, the second barrier plate 204 and the fourth barrier plate 206 are reset to ensure that carbon dioxide and heat in the high-temperature absorption cavity are not excessively lost.

[0060] Reference Figures 12 to 13 Multiple evenly distributed driven racks 207 are installed on the first barrier plate 203, the second barrier plate 204, the third barrier plate 205, and the fourth barrier plate 206, respectively, to facilitate the movement of the first barrier plate 203, the second barrier plate 204, the third barrier plate 205, and the fourth barrier plate 206. A transmission gear 208 meshes with the driven racks 207 to drive the movement of the first barrier plate 203. A second motor 210 is located below the transmission gear 208 to provide power for the movement of the first barrier plate 203, the second barrier plate 204, the third barrier plate 205, and the fourth barrier plate 206. A transmission rod 209 connects the transmission gear 208 and the second motor 210, and the second motor 210 is fixed inside the support frame 201.

[0061] When the first trapping frame 301 and the second trapping frame 302 need to be swapped, the second motors 210 corresponding to the first baffle plate 203 and the third baffle plate 205 are first activated. Through the transmission gear 208, the first baffle plate 203 and the third baffle plate 205 are driven to retract into the shrinkage chamber 202. Then, the cover plate 102 is rotated to drive the first trapping frame 301 and the second trapping frame 302 into the support frame 201. Then, the second motor 210 is activated to reverse, so that the first baffle plate 203 and the third baffle plate 205 are reset. Then, the second motors 210 corresponding to the second baffle plate 204 and the fourth baffle plate 206 are activated, so that the first trapping frame 301 and the second trapping frame 302 can be swapped, and the loss of heat and carbon dioxide during the swapping process is minimal.

[0062] Reference Figures 1 to 16 The collection mechanism 3 is located on both sides of the support frame 201. The collection mechanism 3 includes a first collection frame 301 and a second collection frame 302. Both the first collection frame 301 and the second collection frame 302 are filled with a mixture including natural zeolite, molecular sieve and activated alumina. Carbon dioxide is collected by absorbing carbon dioxide in a high temperature environment by the mixture. Then, carbon dioxide is extracted and collected separately by decomposing carbon dioxide in a low temperature environment by the mixture.

[0063] The first and second collection frames 301 and 302 each have multiple evenly distributed holes 315 to facilitate gas flow. Both the first and second collection frames 301 and 302 have a lower drain hole 303. A fixing lever 304 is fixedly connected to both the first and second collection frames 301 and the rotating cover plate 102, enabling the rotating cover plate 102 to support the first and second collection frames 301 and 302 and to rotate them.

[0064] In addition, a limiting plate 305 is provided between the first collection frame 301 and the second collection frame 302 to support the mixture including natural zeolite, molecular sieve, and activated alumina, preventing the mixture from falling. The limiting plate 305 has multiple evenly distributed vent holes 306 to facilitate gas flow, allowing the desorbed carbon dioxide to be discharged from the lower drain hole 303, making it convenient for workers to collect.

[0065] Reference Figures 1 to 14A first sealing plate 307 and a second sealing plate 308 are respectively provided on both sides of the second collection frame 302. Both are used to block the lower leakage holes 303 on both sides of the first collection frame 301 and the second collection frame 302, so that the carbon dioxide released during the cooling process can be discharged from the lower leakage holes 303. The first sealing plate 307 is fixed to the support frame 201 to prevent the first sealing plate 307 from falling off, and the second sealing plate 308 is fixed to the collection box 1.

[0066] The second collection frame 302 is provided with a leak-proof plate 309 below it to seal the lower leakage hole 303 and thus prevent carbon dioxide leakage. The leak-proof plate 309 has holes 310, which allow the exhaust pipe 401 to penetrate into the second collection frame 302 to facilitate the collection of the desorbed carbon dioxide.

[0067] Preferably, both the first sealing plate 307 and the second sealing plate 308 have cavities filled with sodium chloride aqueous solution to increase the cooling rate of the mixture and thus increase the rate of carbon dioxide desorption.

[0068] Reference Figure 16 The collection box 1 is equipped with a pair of pressure push plates 311, which are used to compress the gas in the high-temperature absorption chamber, thereby increasing the pressure and improving the carbon dioxide absorption effect. Below the pressure push plates 311 is a piston cylinder 312, which pushes the pressure push plates 311, allowing them to rise and compress the gas, thus reducing the volume of the high-temperature absorption chamber. The piston cylinder 312 is fixed to the collection box 1, and a push rod 313 connects the pressure push plates 311 and the piston cylinder 312.

[0069] Reference Figures 1 to 5 The exhaust mechanism 4 is fixed to the collection box 1. The exhaust mechanism 4 is used to receive the desorbed carbon dioxide, preventing leakage and facilitating collection by staff. The exhaust mechanism 4 includes an exhaust pipe 401, which guides the desorbed carbon dioxide into the curved channel for easy discharge. A support ring 402 is fitted onto the exhaust pipe 401, limiting its descent and preventing further descent. The support ring 402 is fixed to the collection box 1 to prevent it from falling off.

[0070] Specifically, a trigger block 403 is fixed on the support ring 402. Through the contact between the exhaust pipe 401 and the trigger block 403, the control box 6 can control the start of the first motor 104, and then control the first capture frame 301 and the second capture frame 302 to switch positions. A shape memory alloy block 404 is installed on the exhaust pipe 401.

[0071] Preferably, the shape memory alloy block 404 can expand outward after the temperature rises, so that the shape memory alloy block 404 can be locked on the second trapping frame 302, thereby preventing the exhaust pipe 401 from sliding downward and avoiding carbon dioxide leakage. After the shape memory alloy block 404 cools down, it can shrink back to its original size, so that the exhaust pipe 401 can be retracted by the support spring 407, which facilitates the exchange of positions between the first trapping frame 301 and the second trapping frame 302.

[0072] Reference Figures 1 to 5 A fixing ring plate 405 is fixed to the exhaust pipe 401 to raise it. An electric push rod 406 is located below the fixing ring plate 405 to push it up, thereby raising the exhaust pipe 401. The electric push rod 406 automatically closes after a period of operation. Once the shape memory alloy block 404 expands and locks itself, the electric push rod 406 will no longer exert upward force. This allows the exhaust pipe 401 to automatically descend, pulled by the support spring 407, after the shape memory alloy block 404 retracts to its original size, preventing it from being inserted into the first trap frame 301 or the second trap frame 302, thus facilitating control of the rotation of the first and second trap frames 301.

[0073] The electric push rod 406 is equipped with a piston rod, and a support spring 407 is connected between the fixed ring plate 405 and the collection box 1 to pull the fixed ring plate 405, thereby driving the exhaust pipe 401 to reset.

[0074] Reference Figures 1 to 8 A purification mechanism 5 is provided on the outside of the collection box 1. The purification mechanism 5 includes a fixed storage frame 501, which is filled with calcium hydroxide solution. By passing gas into the calcium hydroxide solution, a small amount of carbon dioxide in the gas can react with the calcium hydroxide to improve the removal effect of carbon dioxide.

[0075] The fixed storage frame 501 is equipped with a fixed plate 502, which has multiple vent holes 503 for easy gas discharge. A connecting pipe 504 is connected to the fixed storage frame 501, allowing gas from the cooling and desorption chamber to be discharged into the fixed storage frame 501 through the connecting pipe 504. An air pump 505 is also installed on the outside of the collection box 1, and an air supply pipe 506 is connected to the air pump 505, with the other end of the air supply pipe 506 inserted into the collection box 1.

[0076] In addition, the control box 6 is electrically connected to the first motor 104, the second motor 210, the trigger block 403, the electric push rod 406, the piston cylinder 312 and the air pump 505, which enables the control box 6 to intelligently control the device and facilitates operation by staff.

[0077] In practical use, gas containing a large amount of carbon dioxide is introduced into the collection box 1 through the gas supply pipe 101. Then, multiple heating pipes are activated to heat the surrounding air, causing the temperature of the mixture in the high-temperature absorption chamber to rise continuously, thus creating a high-temperature environment. Under high temperature, the mixture absorbs carbon dioxide from the air, achieving the effect of carbon dioxide collection. After a period of time, the operator activates a pair of piston cylinders 312 through the control box 6. The pressure push plate 311 is pushed upward to reduce the volume, thereby achieving the effect of pressurization, allowing the mixture to further absorb carbon dioxide.

[0078] Then, the staff controls the pressure push plate 311 to reset and starts the second motor 210 corresponding to the first barrier plate 203 and the third barrier plate 205, so that the second motor 210 can drive the first barrier plate 203 and the third barrier plate 205 to move through the transmission rod 209 and the transmission gear 208. Then, the first motor 104 is started, which drives the transmission support shaft 105 and the rotating cover plate 102 to rotate. Then, the rotating cover plate 102 drives the first trapping frame 301 and the second trapping frame 302 to rotate, so that the first trapping frame 301 and the second trapping frame 302 can move into the support frame 201.

[0079] At this point, the second motor 210 corresponding to the first barrier plate 203 and the third barrier plate 205 is reversed, so that the first barrier plate 203 and the third barrier plate 205 can be reset and locked. Then, the second motor 210 corresponding to the second barrier plate 204 and the fourth barrier plate 206 is activated, so that the second barrier plate 204 and the fourth barrier plate 206 can be retracted, so that the rotating cover plate 102 can continue to drive the first collection frame 301 and the second collection frame 302 to rotate, so that the mixture that has absorbed carbon dioxide can enter the cooling and desorption chamber, and the cooled mixture can enter the high temperature absorption chamber. Then, the mixture in the high temperature absorption chamber continues to absorb carbon dioxide, while the mixture in the cooling and desorption chamber is cooled so that the carbon dioxide can be desorbed and processed, making it convenient for collection.

[0080] After the first collection frame 301 and the second collection frame 302 are rotated into position, the electric actuator 406 can be activated for a period of time, thereby pushing the exhaust pipe 401 to rise. The high temperature mixture will also raise the temperature of the shape memory alloy block 404, thereby achieving a self-locking effect through the expansion of the shape memory alloy block 404. Then, the decomposed carbon dioxide can enter the exhaust pipe 107 from the exhaust pipe 401 and finally be collected by the staff. After the mixture in the cooling chamber is cooled, the shape memory alloy block 404 will also cool down, thereby shrinking back to its original size. Then, it can automatically retract by the pull of the support spring 407, which facilitates the rotation of the first collection frame 301 and the second collection frame 302.

Claims

1. A low-temperature phase change composite carbon dioxide capture device, characterized in that, include: A collection box (1) is fixedly connected to an air supply pipe (101). A partition protection mechanism (2) is provided inside the collection box (1). The partition protection mechanism (2) includes a support frame (201). A pair of contraction cavities (202) are drilled on the support frame (201). A first barrier plate (203), a second barrier plate (204), a third barrier plate (205) and a fourth barrier plate (206) are respectively inserted into the pair of contraction cavities (202). A plurality of evenly distributed driven racks (207) are installed on the first barrier plate (203), the second barrier plate (204), the third barrier plate (205) and the fourth barrier plate (206). A transmission gear (208) meshes on the driven rack (207). A second motor (210) is provided below the transmission gear (208). A transmission rod (209) is connected between the transmission gear (208) and the second motor (210). The second motor (210) is fixed inside the support frame (201). A collection mechanism (3) is provided on both sides of the support frame (201). The collection mechanism (3) includes a first collection frame (301) and a second collection frame (302). The first collection frame (301) and the second collection frame (302) are both filled with a mixture including natural zeolite, molecular sieve and activated alumina. The first collection frame (301) and the second collection frame (302) have multiple evenly distributed (315) holes. The first collection frame (301) and the second collection frame (302) are both drilled with a drain hole (303) at the bottom. The first collection frame (301) and the second collection frame (302) are both fixedly connected to the rotating cover plate (102) with a fixed lever (304). The first collection frame (301) A limiting plate (305) is provided between the second collection frame (302) and the second collection frame (306), and a plurality of evenly distributed ventilation holes (306) are drilled on the limiting plate (305); a first sealing plate (307) and a second sealing plate (308) are respectively provided on both sides of the second collection frame (302), the first sealing plate (307) is fixed on the support frame (201), and the second sealing plate (308) is fixed on the collection box (1); a leak-proof plate (309) is provided below the second collection frame (302), and holes (310) are drilled on the leak-proof plate (309); cavities are drilled in both the first sealing plate (307) and the second sealing plate (308), and the cavities are filled with sodium chloride aqueous solution; An exhaust mechanism (4) is fixed to the collection box (1) and is used to receive the desorbed carbon dioxide.

2. The low-temperature phase change composite carbon dioxide capture device according to claim 1, characterized in that, The collection box (1) has a groove, and a rotating cover plate (102) is provided on the collection box (1). A sealing strip (103) matching the groove is connected to the rotating cover plate (102). A first motor (104) is installed inside the collection box (1). A transmission support shaft (105) is connected to the first motor (104). The other end of the transmission support shaft (105) is fixedly connected to the rotating cover plate (102). A fixed bearing (106) is connected between the transmission support shaft (105) and the support frame (201).

3. The low-temperature phase change composite carbon dioxide capture device according to claim 1, characterized in that, The bottom of the collection box (1) is chiseled with a curved groove, and a first exhaust pipe (107) is provided in the curved groove. A control ball valve (108) is installed on the first exhaust pipe (107). An adjusting turntable (109) is provided in the control ball valve (108), and a control lever (110) is fixedly connected to the adjusting turntable (109).

4. The low-temperature phase change composite carbon dioxide capture device according to claim 1, characterized in that, The collection box (1) is provided with a pair of pressure push plates (311), and a piston cylinder (312) is provided below the pressure push plate (311). The piston cylinder (312) is fixed on the collection box (1), and a push rod (313) is connected between the pressure push plate (311) and the piston cylinder (312).

5. The low-temperature phase change composite carbon dioxide capture device according to claim 1, characterized in that, The exhaust mechanism (4) includes a second exhaust pipe (401), a support ring (402) is sleeved on the second exhaust pipe (401), the support ring (402) is fixed on the collection box (1), a trigger block (403) is fixed on the support ring (402), and a memory alloy block (404) is installed on the second exhaust pipe (401).

6. The low-temperature phase change composite carbon dioxide capture device according to claim 5, characterized in that, A fixing ring plate (405) is fixed on the second exhaust pipe (401), an electric push rod (406) is provided below the fixing ring plate (405), a piston push rod is provided on the electric push rod (406), and a support spring (407) is connected between the fixing ring plate (405) and the collection box (1).

7. The low-temperature phase change composite carbon dioxide capture device according to claim 1, characterized in that, A purification mechanism (5) is provided on the outside of the collection box (1). The purification mechanism (5) includes a fixed storage frame (501), which is filled with calcium hydroxide solution. A fixing plate (502) is provided on the fixed storage frame (501), and multiple exhaust holes (503) are drilled on the fixing plate (502). A connecting pipe (504) is connected to the fixed storage frame (501).

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