Low-energy-consumption phase-change catalytic carbon dioxide capture equipment for flue gas and its usage method

Abstract

The present invention relates to the technical field of carbon dioxide capture equipment, specifically to low-energy phase-change catalytic carbon dioxide capture equipment for flue gas and a method of use. It includes 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, the rotating shaft is rotatably connected to the vibration capture frame, an inner gear ring is installed on the rotating shaft, and the interior of the smoke inlet is respectively provided with a mutually isolated smoke filter chamber and a smoke exhaust chamber, and the rotating shaft and the positions corresponding to the inner side of the smoke filter chamber are respectively installed from top to bottom with a negative pressure fan and a spiral filter, and the spiral filter is evenly distributed with smoke filter holes. The beneficial effect of the present invention is: through the occurrence of the vortex motion of the carbon dioxide permeation tube, the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation tube is effectively reduced and the self-shaking removal of impurities adhering to the outer surface of the carbon dioxide permeation tube is achieved, thereby ensuring and maintaining the high permeability performance of the carbon dioxide permeation tube.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide capture equipment, specifically to a low-energy-consuming phase-change catalytic carbon dioxide capture equipment for flue gas and its usage method. 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 gases and industrial flue gases. Common carbon dioxide capture technologies mainly include: chemical absorption method, physical absorption method, membrane separation method, and cryogenic separation method.

[0003] In the prior art, a patent document with the publication number CN117899618A discloses a reaction device for carbon dioxide capture, including: a capture absorption tower, a compression, filtration, impurity removal, and oxygen removal mechanism, an exhaust gas purification mechanism, and a circulating cooling mechanism. One side of the capture absorption tower is connected to an exhaust gas delivery pipe. The compression, filtration, impurity removal, and oxygen removal mechanism is arranged on one side of the capture absorption tower. The compression, filtration, impurity removal, and oxygen removal mechanism includes a pretreatment tower. One side of the pretreatment tower is connected to an exhaust gas delivery pipe. A pair of filtration and impurity removal mesh cylinders are arranged inside the pretreatment tower. A deoxidation layer is connected between the pair of filtration and impurity removal mesh cylinders. A filtration, impurity removal, and oxygen removal cavity is formed between the filtration and impurity removal mesh cylinder and the pretreatment tower. A reciprocating compression and diversion mechanism is arranged inside the filtration, impurity removal, and oxygen removal cavity. The reciprocating compression and diversion mechanism matches the filtration and impurity removal mesh cylinder. A self-checking filtration and impurity removal mechanism is arranged below the filtration and impurity removal mesh cylinder. The above device can purify impurities such as dust, nitrogen oxides, and sulfur oxides contained in the carbon dioxide capture exhaust gas. At the same time, it can cool down the carbon dioxide capture exhaust gas.

[0004] However, when the above technical solution works, 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 cylinder and realize the self-vibration removal of the adhered impurities on the outer surface of the carbon dioxide permeation cylinder. 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 cylinder through flue gas flow control. Based on this, the present invention provides a low-energy-consuming phase-change catalytic carbon dioxide capture equipment for flue gas and its usage method to solve the problems raised in the above background art. Summary of the Invention

[0005] In view of the technical problems existing in the prior art, the present invention provides a low-energy-consuming phase-change catalytic carbon dioxide capture equipment for flue gas and its usage method to solve the problems that when the existing device works, 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 cylinder and realize the self-vibration removal of the adhered impurities on the outer surface of the carbon dioxide permeation cylinder, and 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 cylinder 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;

[0011] 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;

[0012] 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;

[0013] Further, a set of casters is installed on the bottom surface of the carrier, a central control host is installed on the end face of the carrier, the smoke filtering holes are arranged vertically, and a smoke inlet is fixedly arranged at the bottom end of the smoke filtering cavity.

[0014] Further, the gas capturing mechanism includes a smoke guiding pipe and a smoke outlet cylinder. The smoke outlet port of the smoke guiding pipe is rotationally communicated with a capturing rotating cylinder. The capturing rotating cylinder is rotationally connected with the smoke outlet cylinder. A capturing cavity is fixedly opened inside the capturing rotating cylinder. A smoke outlet cavity is fixedly opened inside the smoke outlet cylinder. A set of air permeable holes is opened in the lower part of the capturing rotating cylinder. The capturing cavity is communicated with the smoke outlet cavity through the air permeable holes. The smoke outlet cavity is communicated with the smoke exhaust cavity through a connector. A gas guiding shaft tube is rotationally connected to the inner wall of the vibration capturing frame. The bottom end of the gas guiding shaft tube is fixedly communicated with a carbon dioxide permeation cylinder. Both the gas guiding shaft tube and the capturing rotating cylinder are driven by internal gear rings. A spiral flow control blade is installed inside the capturing rotating cylinder. The spiral flow control blade is attached to the carbon dioxide permeation cylinder. A carbon dioxide flow channel communicated with the carbon dioxide storage component is fixedly opened inside the gas guiding shaft tube.

[0015] The beneficial effect of adopting the above further scheme is that during the carbon dioxide capturing operation, the carbon dioxide permeation cylinder rotates at a set speed, and due to the vibration structure of the vibration capturing frame, the carbon dioxide permeation cylinder can displace a set stroke during the rotation process. Through the rotational and vibrational movement of the carbon dioxide permeation cylinder, the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation cylinder is effectively reduced, and the self-vibration removal of impurities adhered to the outer surface of the carbon dioxide permeation cylinder is realized, thereby ensuring and maintaining the high permeation performance of the carbon dioxide permeation cylinder;

[0016] The carbon dioxide permeation cylinder is made of multiple layers of carbon dioxide permeation membranes. The carbon dioxide permeation cylinder enables the carbon dioxide outside the carbon dioxide permeation cylinder to flow unidirectionally into the inside of the carbon dioxide permeation cylinder, that is, realizes the unidirectional filtration of carbon dioxide and thus realizes the capture of carbon dioxide;

[0017] When the spiral flow control blade works, it rotates at a set speed. Through the setting of the spiral flow control blade, the residence time of the flue gas in the capturing rotating cylinder is effectively controlled. By controlling the residence time of the flue gas in the capturing rotating cylinder, the capturing intensity and capturing purity of the carbon dioxide permeation cylinder for carbon dioxide are effectively controlled;

[0018] The lower the rotation speed of the spiral flow control blade, the higher the capturing intensity of the carbon dioxide permeation cylinder for carbon dioxide.

[0019] Further, a gear sleeve is installed on the gas guiding shaft tube. The gear sleeve is in transmission connection with the internal gear ring. A side shaft is rotationally connected to the smoke guiding pipe. An upper gear is installed at the top of the side shaft. The upper gear is in transmission connection with the gear sleeve. Lower gears are installed on both the capturing rotating cylinder and the side shaft. The two lower gears are meshed with each other.

[0020] Furthermore, the carbon dioxide gas storage component includes a gas collecting ring pipe, a compression cylinder, and a carbon dioxide storage tank movably installed on the carrier. Each of the carbon dioxide flow channels is communicated with the gas collecting ring pipe through a flexible conduit. A compression rod is slidably connected to the inner wall of the compression cylinder. The top end of the compression rod is fixedly connected to the vibration catching frame. A compression seat slidably connected to the compression cylinder is fixedly installed at the bottom end of the compression rod. A return spring is sleeved on the compression rod at a position corresponding to the space between the compression cylinder and the vibration catching frame. A one-way intake pipe is communicated between the compression cylinder and the gas collecting ring pipe. A one-way outlet pipe is communicated with the bottom end of the compression cylinder. A connector is sleeved on the one-way outlet pipe, and the connector is threadedly communicated with the carbon dioxide storage tank.

[0021] The beneficial effect of adopting the above further solution is that during the carbon dioxide capture process, through the setting of the one-way intake pipe, the carbon dioxide in the gas collecting ring pipe can flow into the compression cylinder unidirectionally. Through the setting of the one-way outlet pipe, the carbon dioxide entering the compression cylinder can flow out unidirectionally. After the vibration catching frame reciprocates 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.

[0022] Furthermore, a pressure gauge is installed on the carbon dioxide storage tank, and an exhaust valve is communicated with the lower part of the carbon dioxide storage tank.

[0023] Furthermore, a method for using the flue gas low-energy consumption phase change catalytic carbon dioxide capture device includes the following steps:

[0024] SS01. Presetting: Before the capture operation, the inlet chimney (2) is communicated with the external flue gas pipeline, the exhaust pipe is communicated with the next-stage treatment pipeline of the flue gas, and the carbon dioxide storage tank is fully emptied.

[0025] SS02. Capturing: During the capture operation, the driving motor outputs a rotational speed at a set power. After the driving motor outputs the rotational speed, the conveying direction of the spiral filter is downward, the vibration catching frame vibrates within the set stroke, the capture rotating cylinder rotates at a set speed, 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 containing carbon dioxide and impurities is finally catalyzed by the carbon dioxide phase change absorbent in the exhaust pipe and then enters the next-stage treatment equipment of the flue gas.

[0026] The beneficial effects of the present invention are:

[0027] In the present invention, during the carbon dioxide capture operation, the carbon dioxide permeation cylinder rotates at a set speed, and through the vibration structure of the vibration capture frame, the carbon dioxide permeation cylinder can displace by a set stroke during the rotation process. Through the occurrence of the rotational and vibrational motion of the carbon dioxide permeation cylinder, the adhesion rate of residual impurities in the flue gas on the outer surface of the carbon dioxide permeation cylinder is effectively reduced, and the self-vibration removal of the impurities adhered to the outer surface of the carbon dioxide permeation cylinder is realized, thereby ensuring and maintaining the high permeation performance of the carbon dioxide permeation cylinder. The carbon dioxide permeation cylinder is made of multiple layers of carbon dioxide permeation membranes, which enables the carbon dioxide outside the carbon dioxide permeation cylinder to flow unidirectionally into the inner side of the carbon dioxide permeation cylinder, that is, the unidirectional filtration of carbon dioxide is realized, thereby achieving the capture of carbon dioxide.

[0028] 2. In the present invention, when the spiral flow control blade works, it rotates at a set speed. Through the setting of the spiral flow control blade, the residence time of the flue gas in the capture rotating cylinder is effectively controlled. By controlling the residence time of the flue gas in the capture rotating cylinder, the capture intensity and capture purity of the carbon dioxide permeation cylinder for carbon dioxide are effectively controlled. The lower the rotation speed of the spiral flow control blade, the higher the capture intensity of the carbon dioxide permeation cylinder for carbon dioxide. And through the setting of the carbon dioxide phase change absorbent filled in the exhaust pipe, the double-effect and double-time capture of carbon dioxide can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the overall structural schematic diagram of the low-energy consumption phase change catalytic carbon dioxide capture device for flue gas of the present invention;

[0030] Figure 2 For the present invention Figure 1 is the partial enlarged structural schematic diagram at A in;

[0031] Figure 3 For the present invention Figure 1 is the structural schematic diagram from another perspective;

[0032] Figure 4 For the present invention Figure 3 is the sectional structural schematic diagram of;

[0033] Figure 5 For the present invention Figure 4 is the partial enlarged structural schematic diagram at B in;

[0034] Figure 6 For the present invention Figure 4 is the partial enlarged structural schematic diagram at C in;

[0035] Figure 7 For the present invention Figure 4 is the partial enlarged structural schematic diagram at D in;

[0036] Figure 8 For the present inventionFigure 4 Schematic diagram of the local enlarged structure at point E in the middle.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 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

[0039] 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.

[0040] The present invention provides the following preferred embodiments

[0041] like Figures 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;

[0042] 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;

[0043] The rotating shaft 4 is rotatably connected to the vibration capture frame 3;

[0044] 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;

[0045] 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.

[0046] 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 .

[0047] 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;

[0048] 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;

[0049] 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;

[0050] 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.

[0051] 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.

[0052] 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;

[0053] Carbon dioxide phase change absorbent is used for secondary adsorption of carbon dioxide.

[0054] As an implementation manner, the air capturing mechanism includes a smoke guiding pipe 17 and a smoke outlet cylinder 18. The smoke outlet port of the smoke guiding pipe 17 is rotationally communicated with a capturing rotating cylinder 19. The capturing rotating cylinder 19 is rotatably connected to the smoke outlet cylinder 18. A capturing cavity is fixedly formed inside the capturing rotating cylinder 19, and a smoke outlet cavity is fixedly formed inside the smoke outlet cylinder 18. A group of air permeation holes 20 are formed in the lower part of the capturing rotating cylinder 19. The capturing cavity is communicated with the smoke outlet cavity through the air permeation holes 20. The smoke outlet cavity is communicated with the smoke exhaust cavity 8 through a joint 37. A gas guiding shaft tube 21 is rotatably connected to the inner wall of the vibration capturing frame 3. The bottom end of the gas guiding shaft tube 21 is fixedly communicated with a carbon dioxide permeation cylinder 22. Both the gas guiding shaft tube 21 and the capturing rotating cylinder 19 are driven by an internal gear ring 5. A spiral flow control blade 23 is installed inside the capturing rotating cylinder 19. The spiral flow control blade 23 is attached to the carbon dioxide permeation cylinder 22. A carbon dioxide flow channel 24 communicated with the carbon dioxide storage component is fixedly formed inside the gas guiding shaft tube 21.

[0055] During the carbon dioxide capturing operation, the carbon dioxide permeation cylinder 22 rotates at a set speed, and due to the vibration structure arrangement of the vibration capturing frame 3, the carbon dioxide permeation cylinder 22 can displace by a set stroke during the rotation process. Through the occurrence of the vibration and rotation movement of the carbon dioxide permeation cylinder 22, the adhesion rate of the residual impurities in the flue gas on the outer surface of the carbon dioxide permeation cylinder 22 is effectively reduced, and the self-vibration removal of the impurities adhered to the outer surface of the carbon dioxide permeation cylinder 22 is realized, thereby ensuring and maintaining the high permeation performance of the carbon dioxide permeation cylinder 22.

[0056] As an implementation manner, the carbon dioxide permeation cylinder 22 is made of multiple layers of carbon dioxide permeation membranes. The carbon dioxide permeation cylinder 22 enables the carbon dioxide outside the carbon dioxide permeation cylinder 22 to flow unidirectionally into the inner side of the carbon dioxide permeation cylinder 22, that is, realizes the unidirectional filtration of carbon dioxide, thereby realizing the capture of carbon dioxide.

[0057] When the spiral flow control blade 23 works, it rotates at a set speed. Through the setting of the spiral flow control blade 23, the residence time of the flue gas in the capturing rotating cylinder 19 is effectively controlled. By controlling the residence time of the flue gas in the capturing rotating cylinder 19, the capturing intensity and capturing purity of the carbon dioxide permeation cylinder 22 for carbon dioxide are effectively controlled.

[0058] The lower the rotation speed of the spiral flow control blade 23, the higher the capturing intensity of the carbon dioxide permeation cylinder 22 for carbon dioxide.

[0059] As an implementation manner, a gear sleeve 25 is installed on the gas guiding shaft tube 21. The gear sleeve 25 is in transmission connection with the internal gear ring 5. A side shaft 26 is rotatably connected to the smoke guiding pipe 17. An upper gear 27 is installed at the top of the side shaft 26. The upper gear 27 is in transmission connection with the gear sleeve 25. Lower gears 28 are installed on both the capturing rotating cylinder 19 and the side shaft 26, and the two lower gears 28 are meshed with each other.

[0060] 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 communicated with the gas collecting ring pipe 29 through a flexible 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 catching frame 3. A compression seat 33 slidably connected to the compression cylinder 30 is fixedly installed at the bottom end of the compression rod 32. A return spring 34 is sleeved on the compression rod 32 at a position corresponding to the space between the compression cylinder 30 and the vibration catching frame 3. A one-way intake pipe 35 is communicated between the compression cylinder 30 and the gas collecting ring pipe 29. A one-way outlet pipe 36 is communicated with the bottom end of the compression cylinder 30. A connector 37 is sleeved on the one-way outlet pipe 36, and the connector 37 is threadedly communicated with the carbon dioxide storage tank 31.

[0061] During the carbon dioxide capture process, due to the setting of the one-way intake pipe 35, the carbon dioxide in the gas collecting ring pipe 29 can flow into the compression cylinder unidirectionally. Due to the setting of the one-way outlet pipe 36, the carbon dioxide entering the compression cylinder can flow out unidirectionally. After the vibration catching frame 3 reciprocates within a set stroke, the compression seat 33 is then driven to continuously compress the carbon dioxide entering the compression cylinder to the inside of the compression cylinder.

[0062] A pressure gauge is installed on the carbon dioxide storage tank 31, and an exhaust valve 38 is communicated with the lower part of the carbon dioxide storage tank 31.

[0063] The usage method of the low-energy consumption phase change catalytic carbon dioxide capture device for flue gas includes the following steps:

[0064] SS01. Presetting: Before the capture operation, the inlet chimney (2) is communicated with an external flue gas pipeline, the exhaust pipe 12 is communicated with the next-stage flue gas treatment pipeline, and the carbon dioxide storage tank 31 is fully emptied.

[0065] SS02. Capturing: During the capture operation, the driving motor 13 outputs a rotational speed at a set power. After the driving motor 13 outputs the rotational speed, the conveying direction of the spiral filter 10 is downward, the vibration catching frame 3 vibrates within a set stroke, the capture rotating cylinder 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 finally enters the next-stage flue gas treatment device after being catalyzed by the carbon dioxide phase change absorbent in the exhaust pipe 12.

[0066] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within 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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