Flue gas low-energy-consumption phase-change catalysis carbon dioxide trapping equipment and use method

Abstract

The invention relates to the technical field of carbon dioxide trapping equipment, in particular to flue gas low-energy-consumption phase-change catalysis carbon dioxide trapping equipment and a use method. Comprising a carrying frame, a vibration capturing component, a carbon dioxide storage component and a smoke inlet cylinder are installed on the carrying frame, the vibration capturing component is in transmission connection with a vibration capturing frame and a rotating shaft, the rotating shaft is rotationally connected with the vibration capturing frame, an inner gear ring is installed on the rotating shaft, and a smoke filtering cavity and a smoke discharging cavity which are isolated from each other are formed in the smoke inlet cylinder; a negative pressure fan and a spiral filter disc are respectively mounted on the rotating shaft corresponding to the inner side of the smoke filtering cavity from top to bottom, and smoke filtering holes are uniformly distributed in the spiral filter disc. The device has the beneficial effects that the adhesion rate of residual impurities in flue gas on the outer surface of the carbon dioxide permeation cylinder is effectively reduced and the self-shaking removal of the impurities adhered to the outer surface of the carbon dioxide permeation cylinder is realized through the vibration rotation motion of the carbon dioxide permeation cylinder, so that the high permeation performance of the carbon dioxide permeation cylinder is ensured and maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide capture equipment, and in particular to a flue gas low-energy consumption phase change catalytic carbon dioxide capture equipment and a use method thereof. Background Art

[0002] Carbon dioxide capture technology, also known as carbon capture, refers to the process of separating carbon dioxide from gases such as power plant exhaust and industrial flue gas. Common carbon dioxide capture technologies include: chemical absorption, physical absorption, membrane separation and low-temperature separation.

[0003] In the prior art, a patent document with publication number CN117899618A discloses a reaction device for carbon dioxide capture, comprising: a capture absorption tower, a compression filter impurity deoxygenation mechanism, an exhaust gas purification mechanism, and a circulating cooling mechanism. One side of the capture absorption tower is connected to an exhaust gas conveying pipe. The compression filter impurity deoxygenation mechanism is arranged on one side of the capture absorption tower. The compression filter impurity deoxygenation mechanism comprises a pretreatment tower. One side of the pretreatment tower is connected to an exhaust gas conveying pipe. A pair of filter impurity screen cylinders are arranged in the pretreatment tower. A deoxygenation layer is connected between the pair of filter impurity screen cylinders. A filter impurity deoxygenation chamber is formed between the filter impurity screen cylinder and the pretreatment tower. A reciprocating compression guide mechanism is arranged in the filter impurity deoxygenation chamber. The reciprocating compression guide mechanism is matched with the filter impurity screen cylinder. A self-checking filter impurity mechanism is arranged below the filter impurity screen cylinder. The above device can purify impurities such as dust, nitrogen oxides, sulfur oxides, etc. contained in the carbon dioxide capture exhaust gas, and at the same time, the carbon dioxide capture exhaust gas can be cooled and cooled.

[0004] However, when the above technical solution is working, on the one hand, it is not convenient to effectively reduce the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation tube and realize the self-shaking removal of impurities adhered to the outer surface of the carbon dioxide permeation tube; on the other hand, it is not convenient to effectively control the capture intensity and capture purity of carbon dioxide by the carbon dioxide permeation tube through flue gas flow control. Based on this, the present invention provides a flue gas low-energy phase change catalytic carbon dioxide capture device and a use method to solve the problems raised in the above background technology. Summary of the invention

[0005] The present invention aims at the technical problems existing in the prior art and provides a flue gas low-energy consumption phase change catalytic carbon dioxide capture device and a method of use to solve the problem that when the existing device is working, on the one hand, it is not convenient to effectively reduce the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation tube and realize the self-shaking removal of impurities adhered to the outer surface of the carbon dioxide permeation tube; on the other hand, it is not convenient to effectively control the capture intensity and capture purity of the carbon dioxide by the carbon dioxide permeation tube through flue gas flow control.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a low-energy consumption phase-change catalytic carbon dioxide capture device for flue gas comprises a carrier, on which a vibration capture component, a carbon dioxide storage component and a smoke inlet are respectively installed, the vibration capture component is respectively connected to a vibration capture frame and a rotating shaft in a transmission manner, the rotating shaft is rotatably connected to the vibration capture frame, an inner gear ring is installed on the rotating shaft, and a mutually isolated smoke filter chamber and a smoke exhaust chamber are respectively opened inside the smoke inlet, a negative pressure fan and a spiral filter are respectively installed from top to bottom on the rotating shaft and at positions corresponding to the inner side of the smoke filter chamber, the spiral filter is evenly provided with smoke filter holes, a group of air capture mechanisms distributed in a circular array are installed on the smoke inlet, each of the air capture mechanisms is connected to the carbon dioxide storage component, the smoke exhaust chamber is connected to a smoke exhaust pipe, and the interior of the smoke exhaust pipe is filled with a carbon dioxide phase-change absorbent.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the vibration capturing component includes a driving motor fixed on a carrier, a main shaft and a secondary shaft rotatably connected to the carrier, the main shaft, secondary shaft and rotating shaft are all driven by the driving motor, a half-tooth gear is installed on the secondary shaft, a vertically arranged vibration capturing tooth plate is installed on the vibration capturing frame, and the half-tooth gear is transmission-connected to the vibration capturing tooth plate.

[0009] Furthermore, a first bevel gear is installed on the output shaft end and the main shaft of the driving motor, and the two first bevel gears are meshed with each other. A second bevel gear is installed on the secondary shaft and the main shaft, and the two second bevel gears are meshed with each other. A connecting guide groove with a bottom opening and slidingly connected to the rotating shaft is fixedly opened inside the main shaft, and the cross-section of the connecting guide groove and the cross-section of the rotating shaft are both regular polygons.

[0010] The beneficial effect of adopting the above further scheme is that during the carbon dioxide capture operation, the driving motor outputs the speed at the set power. After the driving motor outputs the speed, the main shaft is driven, and after the main shaft is driven, the secondary shaft and the rotating shaft are driven to rotate. After the rotating shaft is driven, the spiral filter is driven to rotate. When the spiral filter rotates, the conveying direction of the spiral filter is downward. By setting the conveying direction of the spiral filter downward, the impurities filtered out of the flue gas are continuously discharged downward, and the adhesion rate of impurities in the flue gas on the spiral filter is effectively reduced; The smoke filter hole is used to filter out impurities in the smoke, and the aperture size of the smoke filter hole can be customized according to actual needs; After the secondary shaft outputs the speed, it drives the vibration frame to vibrate back and forth within the set stroke through the setting of the half-tooth gear and the vibration gear plate; Furthermore, a group of casters are installed on the bottom surface of the carrier, a central control host is installed on the end surface of the carrier, the smoke filter hole is vertically arranged, and a smoke inlet is fixedly arranged at the bottom end of the smoke filter cavity.

[0011] Furthermore, the air capture mechanism includes a smoke duct and a smoke outlet pipe, the smoke outlet port of the smoke duct is rotatably connected to a capture rotor, the capture rotor is rotatably connected to the smoke outlet pipe, a capture chamber is fixedly opened inside the capture rotor, a smoke outlet pipe is fixedly opened inside the smoke outlet pipe, a group of air holes are opened at the lower part of the capture rotor, the capture chamber is connected with the smoke outlet chamber through the air holes, the smoke outlet chamber is connected with the smoke exhaust chamber through a joint, the inner wall of the vibration capture frame is rotatably connected to an air guide shaft tube, the bottom end of the air guide shaft tube is fixedly connected to a carbon dioxide permeation cylinder, the air guide shaft tube and the capture rotor are both driven by an inner gear ring, a spiral flow control blade is installed in the capture rotor, the spiral flow control blade is fitted with the carbon dioxide permeation cylinder, and a carbon dioxide flow channel connected to a carbon dioxide storage component is fixedly opened in the air guide shaft tube.

[0012] The beneficial effect of adopting the above further scheme is that during the carbon dioxide capture operation, the carbon dioxide permeation cylinder rotates at a set speed, and the vibration structure of the vibration capture frame is set so that the carbon dioxide permeation cylinder can be displaced by a set stroke during the rotation process. The carbon dioxide permeation cylinder vibrates to effectively reduce the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation cylinder and realize the self-shaking and removal of impurities adhering to the outer surface of the carbon dioxide permeation cylinder, thereby ensuring and maintaining the high permeability performance of the carbon dioxide permeation cylinder. The carbon dioxide permeable cylinder is made of a multi-layer carbon dioxide permeable membrane, and the carbon dioxide permeable cylinder allows the carbon dioxide on the outside of the carbon dioxide permeable cylinder to flow into the inside of the carbon dioxide permeable cylinder in one direction, that is, to achieve one-way filtration of carbon dioxide and thus achieve carbon dioxide capture; When the spiral flow control blades are working, they rotate at a set speed. By setting the spiral flow control blades, the residence time of the flue gas in the capture vortex is effectively controlled. By controlling the residence time of the flue gas in the capture vortex, the capture intensity and capture purity of the carbon dioxide permeation cylinder are effectively controlled. The lower the rotation speed of the spiral flow control blade, the higher the capture intensity of carbon dioxide by the carbon dioxide permeation cylinder.

[0013] Furthermore, a gear sleeve is installed on the air guide shaft tube, and the gear sleeve is transmission connected to the inner gear ring. A side shaft is rotatably connected to the smoke guide pipe, and an upper gear is installed on the top of the side shaft, and the upper gear is transmission connected to the gear sleeve. Lower gears are installed on both the capture rotor and the side shaft, and the two lower gears are meshed with each other.

[0014] Furthermore, the carbon dioxide storage component includes a gas collecting ring pipe, a compression cylinder and a carbon dioxide storage tank movably installed on a carrier, each of the carbon dioxide flow channels is connected to the gas collecting ring pipe through a soft conduit, the inner wall of the compression cylinder is slidably connected with a compression rod, the top of the compression rod is fixedly connected to a vibration capture frame, the bottom end of the compression rod is fixedly installed with a compression seat slidably connected to the compression cylinder, a return spring is sleeved on the compression rod and corresponding to the position between the compression cylinder and the vibration capture frame, a one-way air inlet pipe is connected between the compression cylinder and the gas collecting ring pipe, the bottom end of the compression cylinder is connected with a one-way air outlet pipe, a joint is sleeved on the one-way air outlet pipe, and the joint is threadedly connected to the carbon dioxide storage tank.

[0015] The beneficial effect of adopting the above further scheme is that during the carbon dioxide capture process, the one-way air inlet pipe is set so that the carbon dioxide in the gas collecting ring pipe can flow into the compression cylinder in one direction, and the one-way air outlet pipe is set so that the carbon dioxide entering the compression cylinder can flow out in one direction. After the vibration capture frame moves back and forth within the set stroke, it then drives the compression seat to continuously compress the carbon dioxide entering the compression cylinder into the interior of the compression cylinder.

[0016] Furthermore, a pressure gauge is installed on the carbon dioxide storage tank, and the lower part of the carbon dioxide storage tank is connected to an exhaust valve.

[0017] Furthermore, the method for using the flue gas low energy consumption phase change catalytic carbon dioxide capture device comprises the following steps: SS01, pre-set, before the capture operation, the smoke inlet (2) is connected to the external smoke delivery pipeline, the smoke exhaust pipe is connected to the next level of smoke treatment pipeline, and the carbon dioxide storage tank is fully emptied; SS02, capture. During the capture operation, the driving motor outputs the speed at the set power. After the driving motor outputs the speed, the conveying direction of the spiral filter is downward, the vibration capture frame vibrates within the set stroke, the capture drum rotates at the set speed, and the compression cylinder continuously compresses the collected carbon dioxide into the carbon dioxide storage tank. When the air pressure value of the carbon dioxide storage tank reaches the set value, a single carbon dioxide capture operation is completed. After the capture process, the flue gas with carbon dioxide and impurities is taken out and catalyzed by the carbon dioxide phase change absorbent in the exhaust pipe and finally enters the next level of flue gas treatment equipment.

[0018] The beneficial effects of the present invention are: In the present invention, during the carbon dioxide capture operation, the carbon dioxide permeation cylinder rotates at a set speed, and the vibration structure of the vibration capture frame is set so that the carbon dioxide permeation cylinder can be displaced by a set stroke during the rotation. The oscillation motion of the carbon dioxide permeation cylinder can effectively reduce the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation cylinder and realize the self-shaking and removal of impurities adhered to the outer surface of the carbon dioxide permeation cylinder, thereby ensuring and maintaining the high permeability performance of the carbon dioxide permeation cylinder. The carbon dioxide permeation cylinder is made of a multi-layer carbon dioxide permeation membrane, and the carbon dioxide permeation cylinder allows the carbon dioxide on the outside of the carbon dioxide permeation cylinder to flow unidirectionally into the inside of the carbon dioxide permeation cylinder, that is, the unidirectional filtration of carbon dioxide is realized to realize the capture of carbon dioxide.

[0019] 2. In the present invention, when the spiral flow control blades are working, they rotate at a set speed. The setting of the spiral flow control blades can effectively control the residence time of the flue gas in the capture rotor. By controlling the residence time of the flue gas in the capture rotor, the capture intensity and capture purity of the carbon dioxide by the carbon dioxide permeation cylinder can be effectively controlled. The lower the rotation speed of the spiral flow control blades, the higher the capture intensity of the carbon dioxide by the carbon dioxide permeation cylinder. In addition, the setting of the carbon dioxide phase change absorbent filled in the exhaust pipe can achieve double-effect double-time capture of carbon dioxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the low-energy consumption phase-change catalytic carbon dioxide capture device for flue gas of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the structure from another perspective; Figure 4 For the present invention Figure 3 A schematic cross-sectional structure diagram of ; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Figure 6 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle; Figure 7 For the present invention Figure 4 A schematic diagram of the local enlarged structure at D in the middle; Figure 8 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point E in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Carrier; 2. Smoke inlet; 3. Vibrating catcher; 4. Rotary shaft; 5. Inner gear ring; 6. Smoke filter chamber; 7. Casters; 8. Smoke exhaust chamber; 9. Negative pressure fan; 10. Spiral filter; 11. Smoke filter hole; 12. Smoke exhaust pipe; 13. Driving motor; 14. Main shaft; 15. Sub-shaft; 16. Central control host; 17. Smoke duct; 18. Smoke outlet; 19. Capture rotary cylinder; 20. Air vent; 21. Air guide shaft tube; 22. Dioxide Carbon permeation cylinder; 23. Spiral flow control blades; 24. Carbon dioxide flow channel; 25. Gear sleeve; 26. Side shaft; 27. Upper gear; 28. Lower gear; 29. ​​Gas collecting ring pipe; 30. Compression cylinder; 31. Carbon dioxide storage tank; 32. Compression rod; 33. Compression seat; 34. Return spring; 35. One-way air inlet pipe; 36. One-way air outlet pipe; 37. Joint; 38. Exhaust valve; 39. Vibration capture gear plate; 40. Half-tooth gear. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] The present invention provides the following preferred embodiments like Figure 1-8 As shown, the low-energy consumption phase-change catalytic carbon dioxide capture device for flue gas comprises a carrier 1, a set of casters 7 are installed on the bottom surface of the carrier 1, and a central control host 16 is installed on the end surface of the carrier 1; The carrier 1 is respectively equipped with a vibration capture component, a carbon dioxide gas storage component and a smoke inlet 2, and the vibration capture component is respectively connected to a vibration capture frame 3 and a rotating shaft 4; The rotating shaft 4 is rotatably connected to the vibration capture frame 3; The vibration capturing component includes a driving motor 13 fixed on the carrier 1, a main shaft 14 and a secondary shaft 15 rotatably connected to the carrier 1, and the main shaft 14, the secondary shaft 15 and the rotating shaft 4 are all driven by the driving motor 13; The output shaft end of the driving motor 13 and the main shaft 14 are both equipped with a first bevel gear, and the two first bevel gears are meshed with each other. The secondary shaft 15 and the main shaft 14 are both equipped with a second bevel gear, and the two second bevel gears are meshed with each other. The main shaft 14 is fixedly provided with a connecting guide groove with a bottom opening and slidably connected to the rotating shaft 4. The cross-sections of the connecting guide groove and the rotating shaft 4 are both regular polygons. A half-toothed gear 40 is installed on the secondary shaft 15 , and a vertically arranged vibration-catching gear plate 39 is installed on the vibration-catching frame 3 . The half-toothed gear 40 is in transmission connection with the vibration-catching gear plate 39 .

[0024] During the carbon dioxide capture operation, the driving motor 13 outputs the speed at the set power. After the driving motor 13 outputs the speed, the main shaft 14 is driven. After the main shaft 14 is driven, the secondary shaft 15 and the rotating shaft 4 are driven to rotate. After the rotating shaft 4 is driven, the spiral filter 10 is driven to rotate. When the spiral filter 10 rotates, the conveying direction of the spiral filter 10 is downward. By setting the conveying direction of the spiral filter 10 downward, the impurities filtered out of the flue gas are continuously discharged downward, and the adhesion rate of impurities in the flue gas on the spiral filter 10 is effectively reduced; The smoke filter hole 11 is used to filter out impurities in the smoke, and the aperture size of the smoke filter hole 11 can be customized according to actual needs; After the secondary shaft 15 outputs the rotation speed, it drives the vibration and capture frame 3 to reciprocate and vibrate within the set stroke through the setting of the half-toothed gear 40 and the vibration and capture gear plate 39; An inner gear ring 5 is mounted on the rotating shaft 4. A smoke filter chamber 6 and a smoke exhaust chamber 8 which are isolated from each other are respectively provided inside the smoke inlet tube 2. A smoke inlet is fixedly provided at the bottom end of the smoke filter chamber 6. Negative pressure fans 9 and spiral filter discs 10 are installed on the rotating shaft 4 and corresponding to the inner side of the smoke filter chamber 6 from top to bottom. Smoke filter holes 11 are evenly distributed on the spiral filter disc 10, and the smoke filter holes 11 are vertically arranged. A group of gas capture mechanisms distributed in a circumferential array are installed on the smoke inlet 2, each gas capture mechanism is connected to the carbon dioxide gas storage component, and the smoke exhaust cavity 8 is connected to a smoke exhaust pipe 12, and the interior of the smoke exhaust pipe 12 is filled with a carbon dioxide phase change absorbent; Carbon dioxide phase change absorbent is used for secondary adsorption of carbon dioxide.

[0025] As an embodiment, the air capture mechanism includes a smoke duct 17 and a smoke outlet pipe 18, the smoke outlet port of the smoke duct 17 is rotatably connected to a capture vortex 19, the capture vortex 19 is rotatably connected to the smoke outlet pipe 18, a capture chamber is fixedly opened inside the capture vortex 19, a smoke outlet chamber is fixedly opened inside the smoke outlet pipe 18, a group of air holes 20 are opened at the lower part of the capture vortex 19, the capture chamber is connected to the smoke outlet chamber through the air holes 20, the smoke outlet chamber is connected to the smoke exhaust chamber 8 through a joint 37, the inner wall of the vibration capture frame 3 is rotatably connected to an air guide shaft tube 21, the bottom end of the air guide shaft tube 21 is fixedly connected to a carbon dioxide permeation tube 22, the air guide shaft tube 21 and the capture vortex 19 are both driven by an inner gear ring 5, a spiral flow control blade 23 is installed in the capture vortex 19, the spiral flow control blade 23 is fitted with the carbon dioxide permeation tube 22, and a carbon dioxide flow channel 24 connected to a carbon dioxide storage component is fixedly opened in the air guide shaft tube 21.

[0026] During the carbon dioxide capture operation, the carbon dioxide permeable cylinder 22 rotates at a set speed, and the vibration structure of the vibration capture frame 3 is set so that the carbon dioxide permeable cylinder 22 can be displaced by a set stroke during the rotation. The oscillation of the carbon dioxide permeable cylinder 22 can effectively reduce the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeable cylinder 22 and realize the self-shaking and removal of impurities adhering to the outer surface of the carbon dioxide permeable cylinder 22, thereby ensuring and maintaining the high permeability of the carbon dioxide permeable cylinder 22. As an embodiment, the carbon dioxide permeable cylinder 22 is made of a multi-layer carbon dioxide permeable membrane, and the carbon dioxide permeable cylinder 22 allows the carbon dioxide on the outside of the carbon dioxide permeable cylinder 22 to flow into the inside of the carbon dioxide permeable cylinder 22 in one direction, that is, the carbon dioxide is filtered in one direction, thereby capturing the carbon dioxide; When the spiral flow control blade 23 is working, it rotates at a set speed. By setting the spiral flow control blade 23, the residence time of the flue gas in the capture vortex 19 is effectively controlled. By controlling the residence time of the flue gas in the capture vortex 19, the capture intensity and capture purity of the carbon dioxide by the carbon dioxide permeation cylinder 22 are effectively controlled. The lower the rotation speed of the spiral flow control blade 23 , the higher the carbon dioxide capture intensity of the carbon dioxide permeation cylinder 22 .

[0027] As an implementation mode, a gear sleeve 25 is installed on the air guide shaft tube 21, and the gear sleeve 25 is transmission connected to the inner gear ring 5. A side shaft 26 is rotatably connected to the smoke guide pipe 17, and an upper gear 27 is installed on the top of the side shaft 26. The upper gear 27 is transmission connected to the gear sleeve 25, and lower gears 28 are installed on both the capture rotor 19 and the side shaft 26, and the two lower gears 28 are meshed with each other.

[0028] The carbon dioxide storage component includes a gas collecting ring pipe 29, a compression cylinder 30 and a carbon dioxide storage tank 31 movably installed on the carrier 1. Each carbon dioxide flow channel 24 is connected to the gas collecting ring pipe 29 through a soft conduit. The inner wall of the compression cylinder 30 is slidably connected with a compression rod 32. The top of the compression rod 32 is fixedly connected to the vibration capture frame 3. The bottom end of the compression rod 32 is fixedly installed with a compression seat 33 slidably connected to the compression cylinder 30. A return spring 34 is sleeved on the compression rod 32 and corresponds to the position between the compression cylinder 30 and the vibration capture frame 3. A one-way air inlet pipe 35 is connected between the compression cylinder 30 and the gas collecting ring pipe 29. The bottom end of the compression cylinder 30 is connected with a one-way air outlet pipe 36. A joint 37 is sleeved on the one-way air outlet pipe 36, and the joint 37 is threadedly connected to the carbon dioxide storage tank 31.

[0029] During the carbon dioxide capture process, the one-way air inlet pipe 35 is set so that the carbon dioxide in the gas collecting ring pipe 29 can flow into the compression cylinder in one direction, and the one-way air outlet pipe 36 is set so that the carbon dioxide entering the compression cylinder can flow out in one direction. After the vibration capture frame 3 moves back and forth within the set stroke, it drives the compression seat 33 to continuously compress the carbon dioxide entering the compression cylinder into the interior of the compression cylinder.

[0030] A pressure gauge is installed on the carbon dioxide storage tank 31 , and a gas exhaust valve 38 is connected to the lower portion of the carbon dioxide storage tank 31 .

[0031] The method for using the low-energy consumption phase-change catalytic carbon dioxide capture device for flue gas comprises the following steps: SS01. It is preset that before the capture operation, the smoke inlet (2) is connected to the external smoke delivery pipeline, the smoke exhaust pipe 12 is connected to the next-level smoke treatment pipeline, and the carbon dioxide storage tank 31 is fully emptied; SS02, capture. During the capture operation, the driving motor 13 outputs the speed at the set power. After the driving motor 13 outputs the speed, the conveying direction of the spiral filter 10 is downward, the vibration capture frame 3 vibrates within the set stroke, the capture drum 19 rotates at the set speed, and the compression cylinder 30 continuously compresses the collected carbon dioxide into the carbon dioxide storage tank 31. When the air pressure value of the carbon dioxide storage tank 31 reaches the set value, a single carbon dioxide capture operation is completed. After the capture process, the flue gas with carbon dioxide and impurities is taken out and finally enters the next level of flue gas treatment equipment after catalysis by the carbon dioxide phase change absorbent in the exhaust pipe 12.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-energy consumption phase-change catalytic carbon dioxide capture device for flue gas, comprising a carrier (1), characterized in that: The carrier (1) is respectively mounted with a vibration capture component, a carbon dioxide gas storage component and a smoke inlet (2); the vibration capture component is respectively connected to a vibration capture frame (3) and a rotating shaft (4); the rotating shaft (4) is rotationally connected to the vibration capture frame (3); an inner gear ring (5) is mounted on the rotating shaft (4); a smoke filter chamber (6) and a smoke exhaust chamber (8) isolated from each other are respectively opened inside the smoke inlet (2); a negative pressure fan (9) and a spiral filter (10) are respectively mounted on the rotating shaft (4) and at positions corresponding to the inner side of the smoke filter chamber (6) from top to bottom; the spiral filter (10) is evenly distributed with smoke filter holes (11); a group of gas capture mechanisms distributed in a circular array are mounted on the smoke inlet (2); each of the gas capture mechanisms is connected to the carbon dioxide gas storage component; the smoke exhaust chamber (8) is connected to a smoke exhaust pipe (12); the interior of the smoke exhaust pipe (12) is filled with a carbon dioxide phase change absorbent; The vibration capture component comprises a driving motor (13) fixed on the carrier (1), a main shaft (14) and a secondary shaft (15) rotatably connected to the carrier (1), the main shaft (14), the secondary shaft (15) and the rotating shaft (4) are all driven by the driving motor (13), a half-toothed gear (40) is installed on the secondary shaft (15), a vertically arranged vibration capture tooth plate (39) is installed on the vibration capture frame (3), and the half-toothed gear (40) is drivingly connected to the vibration capture tooth plate (39); The air capture mechanism comprises a smoke duct (17) and a smoke outlet tube (18); a smoke outlet port of the smoke duct (17) is rotatably connected to a capture vortex (19); the capture vortex (19) is rotatably connected to the smoke outlet tube (18); a capture cavity is fixedly provided inside the capture vortex (19); a smoke outlet cavity is fixedly provided inside the smoke outlet tube (18); a group of air holes (20) are provided at the bottom of the capture vortex (19); the capture cavity is connected to the smoke outlet cavity via the air holes (20); the smoke outlet cavity is connected to the smoke exhaust cavity via a joint (37). (8) connected, the inner wall of the vibration capture frame (3) is rotatably connected to an air guide shaft tube (21), the bottom end of the air guide shaft tube (21) is fixedly connected to a carbon dioxide permeation cylinder (22), the air guide shaft tube (21) and the capture rotary cylinder (19) are both driven by an inner gear ring (5), a spiral flow control blade (23) is installed in the capture rotary cylinder (19), the spiral flow control blade (23) is in contact with the carbon dioxide permeation cylinder (22), and a carbon dioxide flow channel (24) connected to the carbon dioxide storage component is fixedly opened in the air guide shaft tube (21).

2. The low-energy consumption phase-change catalytic carbon dioxide capture equipment for flue gas according to claim 1 is characterized in that: A first bevel gear is mounted on the output shaft end of the drive motor (13) and the main shaft (14), and the two first bevel gears are meshed with each other. A second bevel gear is mounted on the secondary shaft (15) and the main shaft (14), and the two second bevel gears are meshed with each other. A connecting guide groove with a bottom opening and slidably connected to the rotating shaft (4) is fixedly provided inside the main shaft (14), and the cross-section of the connecting guide groove and the cross-section of the rotating shaft (4) are both regular polygons.

3. The low-energy consumption phase-change catalytic carbon dioxide capture equipment for flue gas according to claim 1 is characterized in that: A set of casters (7) is installed on the bottom surface of the carrier (1), a central control host (16) is installed on the end surface of the carrier (1), the smoke filter hole (11) is arranged vertically, and a smoke inlet is fixedly arranged at the bottom end of the smoke filter chamber (6).

4. The low-energy consumption phase-change catalytic carbon dioxide capture equipment for flue gas according to claim 1 is characterized in that: A gear sleeve (25) is mounted on the gas guide shaft tube (21), and the gear sleeve (25) is in driving connection with the inner gear ring (5). A side shaft (26) is rotatably connected to the smoke guide tube (17), and an upper gear (27) is mounted on the top of the side shaft (26), and the upper gear (27) is in driving connection with the gear sleeve (25). Lower gears (28) are mounted on both the capture rotor (19) and the side shaft (26), and the two lower gears (28) are meshed with each other.

5. The low-energy consumption phase-change catalytic carbon dioxide capture equipment for flue gas according to claim 4 is characterized in that: The tooth height of the tooth sleeve (25) is 8 to 12 times the tooth height of the upper gear (27).

6. The low-energy consumption phase-change catalytic carbon dioxide capture equipment for flue gas according to claim 5 is characterized in that: The carbon dioxide gas storage component comprises a gas collecting ring pipe (29), a compression cylinder (30) and a carbon dioxide storage tank (31) movably mounted on the carrier (1); each of the carbon dioxide flow channels (24) is connected to the gas collecting ring pipe (29) via a soft conduit; a compression rod (32) is slidably connected to the inner wall of the compression cylinder (30); the top end of the compression rod (32) is fixedly connected to the vibration capture frame (3); a compression seat (33) slidably connected to the compression cylinder (30) is fixedly mounted on the bottom end of the compression rod (32); a return spring (34) is sleeved on the compression rod (32) and corresponds to the position between the compression cylinder (30) and the vibration capture frame (3); a one-way air inlet pipe (35) is connected between the compression cylinder (30) and the gas collecting ring pipe (29); the bottom end of the compression cylinder (30) is connected to a one-way air outlet pipe (36); a joint (37) is sleeved on the one-way air outlet pipe (36); the joint (37) is threadedly connected to the carbon dioxide storage tank (31).

7. The low-energy consumption phase-change catalytic carbon dioxide capture equipment for flue gas according to claim 6 is characterized in that: A pressure gauge is installed on the carbon dioxide storage tank (31), and a lower portion of the carbon dioxide storage tank (31) is connected to an exhaust valve (38).

8. The method for using the low-energy consumption phase-change catalytic carbon dioxide capture device for flue gas according to any one of claims 1 to 7, characterized in that: The following steps are involved: SS01. It is preset that before the capture operation, the smoke inlet (2) is connected to the external smoke delivery pipeline, the smoke exhaust pipe (12) is connected to the next-level smoke treatment pipeline, and the carbon dioxide storage tank (31) is fully emptied; SS02, capture. During the capture operation, the driving motor (13) outputs the speed at a set power. After the driving motor (13) outputs the speed, the conveying direction of the spiral filter (10) is downward, the vibration capture frame (3) vibrates within the set stroke, the capture drum (19) rotates at a set speed, and the compression cylinder (30) continuously compresses the collected carbon dioxide into the carbon dioxide storage tank (31). When the air pressure value of the carbon dioxide storage tank (31) reaches the set value, a single carbon dioxide capture operation is completed. After the capture process, the flue gas containing carbon dioxide and impurities is taken out and finally enters the next stage of flue gas treatment equipment after catalysis by the carbon dioxide phase change absorbent in the exhaust pipe (12).

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