Co2 capture reactor and co2 capture device

Abstract

The present disclosure relates to a CO2 capture reactor and a CO2 capture device, the CO2 capture reactor comprising a reaction kettle and a gas inlet mechanism, the reaction kettle having a reaction gas inlet, a reaction gas outlet and a reaction cavity between the two; the gas inlet mechanism comprising a gas inlet body installed on the reaction gas inlet, a valve core and a reset part, the gas inlet body having an outlet hole and a gas inlet for communicating with a gas source, and a valve port between the outlet hole and the gas inlet, the valve core having a first working position and a second working position. The CO2 capture reactor of the present disclosure can automatically open and close the gas inlet mechanism according to the change of the gas inlet pressure of CO2 gas. When the gas inlet pressure of CO2 gas is high, the valve core can be moved to the first working position to open the valve port. When the reaction is over, the gas inlet pressure of CO2 gas decreases until it disappears, and the valve core returns to the second working position under the action of the reset part, i.e. the valve port is closed at the same time. At this time, the liquid in the reaction cavity can also be effectively prevented from flowing into the reaction gas inlet through the valve port.

Description

Technical Field

[0001] This disclosure relates to the field of CO2 capture technology, specifically to a CO2 capture reactor and a CO2 capture device for installing the CO2 capture reactor. Background Technology

[0002] CO2 capture devices are widely used in the chemical industry for CO2 capture and recovery from flue gas. However, flue gas is a mixture of gases and dust, with a very complex composition. The gases include nitrogen, water vapor, sulfur dioxide, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides, while the dust includes fuel ash, coal particles, heavy metal combustion residues, and high-temperature pyrolysis products.

[0003] In related technologies, CO2 collection first involves introducing CO2 into a reactor for reaction, using chemical methods to remove impurities from the CO2 gas, followed by gas collection. Once the CO2 gas to be purified is almost fully reacted, workers must promptly disconnect the inlet pipe from the reactor. Failure to do so can cause the solution in the reactor to flow into the inlet pipe, damaging it and potentially leading to a safety accident. Summary of the Invention

[0004] The purpose of this disclosure is to provide a CO2 capture reactor and CO2 capture device that can reduce the flow of solution from the reactor into the inlet pipe due to operator negligence.

[0005] To achieve the above objectives, this disclosure provides a CO2 capture reactor, comprising:

[0006] A reaction vessel has a reaction inlet and a reaction outlet, a reaction chamber located between the two, and a drain outlet communicating with the reaction chamber;

[0007] The air intake mechanism includes an air intake body installed at the reaction air inlet, a valve core movably disposed within the air intake body, and a reset part. The air intake body has an air outlet located at the bottom of the reaction chamber, an air inlet for communicating with a CO2 pressure gas source, and a valve port located between the air outlet and the air inlet. The valve core is configured to have a first working position and a second working position. In the first working position, the valve core is pushed open by gas entering from the air inlet. In the second working position, the valve core is reset by the reset part and closes the valve port as the gas pressure decreases.

[0008] Optionally, the valve port includes a first valve hole, the air intake body includes a first cylinder having the first valve hole on its side wall and a second cylinder connected to the outside of the side wall of the first cylinder and communicating with the inside of the first cylinder through the first valve hole, the second cylinder extending from the first cylinder into the reaction chamber, the air outlet being formed on the side wall of the second cylinder, and the valve core moving between the first working position and the second working position being able to open and close the first valve hole.

[0009] Optionally, the valve port further includes a second valve hole, the valve core is formed as a third cylinder and is open at one end toward the air inlet, the second valve hole is formed on the side wall of the third cylinder, in the first working position, the second valve hole is aligned and connected with the first valve hole, in the second working position, the second valve hole and the first valve hole are staggered and closed.

[0010] Optionally, the reset part is an elastic element located at the end of the valve core and the first cylinder away from the air inlet. The elastic element is a compression spring. The second cylinder is a plurality of cylinders arranged circumferentially around the first cylinder, and each second cylinder has a plurality of air outlet holes distributed axially.

[0011] Optionally, it also includes a stirring device, which includes a stirring shaft, the stirring shaft including a stirring section and a driving section arranged along the axial direction, the stirring section having a plurality of stirring blades distributed thereon, the driving section being rotatably connected to the air intake body and having a plurality of driving blades connected thereon, the plurality of driving blades being arranged toward the air inlet to drive the stirring shaft to rotate by the flow of gas entering from the air inlet, and the valve core being movably sleeved outside the driving section.

[0012] According to a second aspect of this disclosure, a CO2 capture device is also provided, including an inlet pipe, an outlet pipe, and a reactor and a filter located between the inlet pipe and the outlet pipe. The reactor is the CO2 capture reactor in the above embodiments. The inlet pipe is connected to the reaction inlet, the filter inlet is connected to the reaction outlet, and the outlet pipe is connected to the filter outlet.

[0013] Optionally, a dryer is also provided between the reactor and the filter. The dryer includes a drying cylinder and a mounting frame. The mounting frame is fixedly connected to the outside of the drying cylinder and is provided with a radiator and a fan that blows the heat from the radiator to the drying cylinder. The side wall of the drying cylinder is provided with a plurality of drying holes facing the fan, and has a drying air inlet communicating with the reaction outlet and a drying air outlet communicating with the filter inlet.

[0014] Optionally, it also includes a heat-conducting mechanism for transferring the reaction heat in the reactor to the dryer. The heat conductor includes a first heat-conducting pipe, a second heat-conducting pipe, a liquid pump, and a heat-conducting sleeve. The heat-conducting sleeve surrounds the outer surface of the reactor. The first heat-conducting pipe is at least partially spirally inserted into the heat-conducting sleeve, with one end connected to the medium inlet of the radiator and the other end connected to the second heat-conducting pipe. The second heat-conducting pipe is connected to the medium outlet of the radiator. The liquid pump is used to drive the medium to circulate in the first heat-conducting pipe and the second heat-conducting pipe.

[0015] Optionally, the first heat pipe includes a spiral section and a first straight section, the second heat pipe includes a second straight section, one end of the first straight section is connected to the spiral section, the other end is connected to the medium inlet of the radiator, one end of the second straight section is connected to the medium outlet of the radiator, and the liquid pumps are two pumps respectively installed in the first straight section and the second straight section.

[0016] Optionally, it also includes a gas slack cylinder, wherein the gas slack cylinder’s gas slack inlet is directly connected to the reaction outlet, and the gas slack outlet is connected to the filter outlet.

[0017] Compared with the prior art, the advantages of this disclosure are as follows: The CO2 capture reactor of this disclosure includes an inlet mechanism that can automatically open and close according to the change of inlet pressure. Specifically, when the inlet pressure of CO2 gas is high, the valve core can be moved to the first working position. At this time, the valve port is open, and CO2 gas can enter the reaction chamber through the valve port to react. When the reaction ends, the inlet pressure of CO2 gas decreases until it disappears, and the valve core returns to the second working position under the action of the reset part, that is, the valve port is closed at the same time. At this time, it can also effectively prevent the liquid in the reaction chamber from flowing into the reaction inlet through the valve port.

[0018] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the CO2 capture device provided in the exemplary embodiments of this disclosure;

[0021] Figure 2 This is a schematic diagram of the CO2 capture reactor provided in an exemplary embodiment of this disclosure;

[0022] Figure 3This is a schematic diagram of the air intake mechanism in the CO2 capture reactor provided in the exemplary embodiments of this disclosure;

[0023] Figure 4 This is a schematic diagram of the structure of the stirring device in the CO2 capture reactor provided in the exemplary embodiments of this disclosure;

[0024] Figure 5 This is a schematic diagram of the dryer and heat conduction mechanism in the CO2 capture device provided in the exemplary embodiments of this disclosure;

[0025] Figure 6 This is a schematic diagram of the structure of the filter in the CO2 capture device provided in the exemplary embodiments of this disclosure.

[0026] Explanation of reference numerals in the attached figures

[0027] 1-Reaction vessel; 11-Reaction chamber; 12-Drain port; 13-Reaction gas inlet; 14-Reaction gas outlet;

[0028] 2-Intake mechanism; 21-Valve core; 211-Second valve hole; 212-Third cylinder; 22-Intake body; 221-First valve hole; 222-Valve port; 223-Second cylinder; 2221-Outlet; 224-Inlet; 225-First cylinder; 23-Reset part;

[0029] 3-Intake pipe; 4-Outtake pipe;

[0030] 5-Stirring device; 51-Stirring shaft; 511-Stirring section; 512-Drive section; 5121-Drive blade; 52-Stirring blade; 521-First stirring blade; 522-Second stirring blade;

[0031] 6-Dryer; 61-Drying cylinder; 62-Mounting frame; 63-Fan; 64-Drying hole; 65-Drying air inlet; 66-Drying air outlet;

[0032] 7-Heat conduction mechanism; 71-First heat conduction pipe; 711-Helical pipe section; 712-First straight pipe section; 72-Second heat conduction pipe; 721-Second straight pipe section; 73-Liquid pump; 74-Heat conduction jacket; 75-Radiator;

[0033] 8-Restoring air cylinder; 81-Restoring air inlet; 82-Restoring air outlet;

[0034] 9-Filter; 91-Filter inlet; 92-Filter outlet; 93-Filter plate; 94-Filter cartridge. Detailed Implementation

[0035] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0036] In this disclosure, unless otherwise stated, directional terms such as "up," "down," "high," "low," "top," and "bottom" generally refer to the orientation of the corresponding component or structure in the direction of gravity. For specific details, please refer to [reference needed]. Figure 1 The drawing orientation is shown. "Inner" and "outer" refer to the inner and outer contours of the corresponding components. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0037] This disclosure relates to a CO2 capture device and a CO2 capture apparatus using the same. The CO2 capture device includes a reaction vessel and an inlet mechanism located within the reaction vessel. The reaction vessel has a reaction inlet and a reaction outlet, and a reaction chamber located between the reaction inlet and the reaction outlet. The reaction chamber contains a chemical reaction solution for purifying impurities in the CO2 gas. CO2 gas can be introduced into the reaction chamber through the reaction inlet to react chemically with the solution in the reaction vessel, thereby removing impurities from the CO2 gas. Finally, the CO2 gas flows out of the reaction vessel through the reaction outlet to other equipment for liquefaction and storage.

[0038] The gas inlet mechanism is located in the reactor and includes an inlet body at the gas inlet and a valve core and a reset part within the inlet body. The inlet body has an outlet communicating with the reactor cavity, an inlet connected to a CO2 gas source, and a valve located between the outlet and the inlet. The valve core can slide between a first working position and a second working position within the inlet body, propelled by CO2 gas or the reset part, automatically opening or closing the valve without operator intervention. This prevents chemical reaction solution from flowing out of the reactor due to operator negligence, thus avoiding equipment damage and safety accidents.

[0039] For ease of understanding, please refer to the appendix below. Figures 1 to 6 The specific structure and working principle of this disclosure will be explained in detail with reference to the embodiments.

[0040] In one embodiment of this disclosure, see Figure 2 and Figure 3The CO2 capture reactor disclosed herein includes a reaction vessel 1 and an inlet mechanism 2. The reaction vessel 1 includes a reaction inlet 13 and a reaction outlet 14, and a reaction chamber 11 located between them. The reaction chamber 11 contains a chemical solution for removing impurities from CO2 gas. During CO2 gas purification, CO2 gas is introduced into the reaction chamber 11 through the reaction inlet 13. After entering the reaction chamber 11, the gas reacts with the chemical solution therein, removing impurities. Finally, the gas flows out from the reaction outlet 14 to other equipment, facilitating subsequent liquefaction and storage of the clean CO2 gas. The reaction vessel 1 is also equipped with a drain port 12 communicating with the reaction chamber 11, which can be used to drain the chemical solution from the reaction chamber 11 after the chemical reaction is complete or after prolonged use, allowing for timely replacement.

[0041] The intake mechanism 2 is located in the reaction chamber 11 and includes an intake body 22, a movable valve core 21 disposed within the intake body 22, and a reset part 23. The intake body 22 is installed at the reaction inlet 13. The intake body 22 has an outlet 2221 located at the bottom of the reaction chamber 11, an inlet 224 connected to a CO2 pressure vapor source, and a valve port 222 located between the outlet 2221 and the inlet 224. During CO2 gas purification, the CO2 gas first enters the intake body 22 through the inlet 224, then enters the outlet 2221 through the valve port 222, and finally enters the reaction chamber 11 to undergo a chemical reaction, removing impurities from the gas.

[0042] Since the valve core 21 can move within the intake body 22, it can close or open the valve port 222, thereby disconnecting or opening the connection between the reaction chamber 11 and the CO2 pressure vapor source. The valve core 21 has a first working position and a second working position within the intake body 22. When in the first working position, the valve core 21 can open the valve port 222, allowing communication between the air inlet 224 and the air outlet 2221. When in the second working position, the valve core 21 can close the valve port 222, disconnecting the communication between the air inlet 224 and the air outlet 2221. The reset part 23 can move the valve core 21 from the first working position to the second working position, thereby closing the valve port 222 without requiring manual operation. The reset part 23 can be an elastic element, such as a compression spring or a spring sheet, depending on the actual situation; this disclosure does not impose any limitations on this.

[0043] When the CO2 capture reactor is not in operation, valve core 21 is in the second working position. When the CO2 capture reactor needs to operate, the CO2 pressure vapor source introduces CO2 gas into the gas inlet body 22 through the gas inlet 224. The CO2 gas can push valve core 21 from the second working position to the first working position, thereby opening the connection between the gas inlet 224 and the gas outlet 2221, allowing CO2 gas to enter the reaction chamber 11 for chemical reaction to remove impurities. After all the CO2 gas has reacted, the CO2 pressure vapor source no longer introduces gas into the gas inlet body 22. At this time, under the action of the reset part 23, valve core 21 moves from the first working position to the second working position, closing the connection between the gas inlet 224 and the gas outlet 2221, preventing the solution in the reaction chamber 11 from flowing out. The CO2 capture reactor disclosed herein can automatically open or close the valve port 222 via the valve core 21 according to the gas supply status of the CO2 pressure vapor source. This can prevent the solution in the reaction chamber 11 from flowing out due to negligence of the staff and failure to close the valve after the CO2 pressure vapor source stops supplying gas, which could cause equipment damage and safety accidents.

[0044] In one embodiment of this disclosure, see Figure 2 and Figure 3 The valve port 222 includes a first valve hole 221, and the air intake body 22 includes a first cylinder 225 and a second cylinder 223. The first cylinder 225 has a first valve hole 221 on its side wall. One second cylinder 223 can be provided; one end of the second cylinder 223 is fixedly connected to the outside of the side wall of the first cylinder 225 and communicates with the inside of the first cylinder 225 through the first valve hole 221, while the other end extends into the reaction chamber 11. An air outlet 2221 is provided on the side wall of the second cylinder 223, allowing the air outlet 2221 to communicate with the inside of the first cylinder 225 through the inner cavity of the second cylinder 223 and the first valve hole 221.

[0045] When the CO2 capture reactor needs to operate, the CO2 pressure steam source will introduce CO2 gas with a certain pressure into the air inlet 224 at the bottom of the first cylinder 225. The CO2 drives the valve core 21 to move from the second working position to the first working position, opening the first valve hole 221, so that the CO2 gas can enter the inner cavity of the second cylinder 223 through the inner cavity of the first cylinder 225, and finally enter the reaction chamber 11 through the air outlet 2221 on the side wall of the second cylinder 223, reacting with the chemical solution in the reaction chamber 11 to remove impurities.

[0046] In this embodiment, multiple second cylinders 223 can be provided, each with multiple vent holes 2221 arranged axially. These multiple second cylinders 223 are evenly distributed around the first cylinder 225. The number of first valve holes 221 on the first cylinder 225 is the same as the number of second cylinders 223, ensuring that each second cylinder 223 can communicate with the inner cavity of the first cylinder 225 through the first valve hole 221. This arrangement allows more CO2 gas to enter the reaction chamber 11 through the multiple second cylinders 223 and the multiple vent holes 2221 on each second cylinder 223, reacting with the chemical solution in the reaction chamber 11, thus accelerating the purification of CO2 gas and improving working efficiency.

[0047] In one embodiment of this disclosure, see Figure 2 and Figure 3 The valve port 222 also includes a second valve hole 211. The valve core 21 is formed into a third cylinder 212, which is open at one end facing the air inlet 224. The second valve hole 211 is disposed on the side wall of the third cylinder 212. In this embodiment, the outer wall of the third cylinder 212 is attached to the inner wall of the first cylinder 225, so that the third cylinder 212 can close the first valve hole 221 on the first cylinder 225 through its outer wall. The reset part 23 is a compression spring disposed between the top wall of the third cylinder 212 and the first cylinder 225. Of course, in other embodiments, the third cylinder 212 can also close the first valve hole 221 on the first cylinder 225 in other ways, and this disclosure does not limit this.

[0048] When the CO2 capture reactor is not operating, the third cylinder 212 is in the second operating position. At this time, the third cylinder 212 closes the first valve hole 221 on the first cylinder 225 through its outer wall, and the connection between the first valve hole 221 and the air inlet 224 at the bottom of the third cylinder 212 is broken. When the CO2 capture reactor needs to operate, the CO2 pressure steam source introduces CO2 gas into the third cylinder 212 through the air inlet 224. The CO2 gas can push the third cylinder 212 from the second position to the first position, so that the second valve hole 211 on the side wall of the third cylinder 212 is aligned and connected with the first valve hole 221 on the side wall of the first cylinder 225. This allows the air outlet 2221 on the first cylinder 225 to connect with the air inlet 224 at the bottom of the third cylinder 212, and the CO2 gas can then enter the reaction chamber 11 through the air outlet 2221 to carry out a chemical reaction to remove impurities.

[0049] After all the CO2 gas has reacted, the CO2 pressure gas source no longer supplies gas to the third cylinder 212. At this time, the third cylinder 212 will move from the first working position to the second working position under the action of the reset part 23, so that the second valve hole 211 on the third cylinder 212 is misaligned with the first valve hole 221 on the first cylinder 225, thereby disconnecting the connection between the gas inlet 224 and the gas outlet 2221 and preventing the solution in the reaction chamber 11 from flowing out.

[0050] In one embodiment of this disclosure, see Figure 2 and Figure 4 The CO2 capture reactor disclosed herein also includes a stirring device 5, located in the reactor 1. The stirring device 5 stirs the chemical solution in the reaction chamber 11 after CO2 gas is introduced, allowing for more thorough contact and reaction between the CO2 gas and the solution, thereby improving reaction efficiency and saving reaction time. The stirring device 5 includes a stirring shaft 51 and stirring blades 52. The stirring shaft 51 includes a stirring section 511 and a driving section 512. The stirring section 511 is located in the reaction chamber 11, and the stirring blades 52 are mounted on the stirring section 511 of the stirring shaft 51, allowing the stirring blades 52 to rotate with the stirring shaft 51 and stir the solution in the reaction chamber 11.

[0051] The drive section 512 is rotatably connected to the intake body 22. Multiple drive blades 5121 are mounted on the end furthest from the stirring section 511, extending into the inner cavity of the intake body 22 and the valve core 21. The valve core 21 is movably fitted around the drive section 512 to prevent it from colliding with the drive blades 5121 and causing damage during movement. When CO2 gas is introduced into the inner cavity of the intake body 22, the CO2 gas drives the drive blades 5121 to rotate, which in turn drives the entire stirring shaft 51 and stirring blades 52 to rotate.

[0052] In one embodiment of this disclosure, see Figure 4The stirring blade 52 includes a first stirring blade 521 and a second stirring blade 522. The first stirring blade 521 is used to stir the solution in the reaction chamber 11, while the second stirring blade 522 is in contact with the inner wall of the reaction chamber 11 and can remove impurities adhering to the inner wall of the reaction chamber 11 during rotation. In this embodiment, the first stirring blade 521 is a cylinder disposed on the stirring section 511 of the stirring shaft 51, and three of them are evenly distributed along the circumference of the stirring shaft 51. One end of the first stirring blade 521 is fixedly connected to the stirring shaft 51, and the other end extends into the reaction chamber 11, thereby stirring the solution in the reaction chamber 11. The second stirring blade 522 is a rectangular frame fixed on the stirring shaft 51, and its outer edge is in contact with the inner wall of the reaction chamber 11, thereby removing impurities adhering to the inner wall of the reaction chamber 11 during rotation. Of course, in other embodiments, the first stirring blade 521 and the second stirring blade 522 can also be of other shapes, depending on the actual situation, such as the size and shape of the reaction chamber 11, etc., which are not limited in this disclosure.

[0053] When the CO2 capture reactor disclosed herein is in use, CO2 gas is introduced into the reaction chamber 11 through the reaction inlet 13 on the reaction vessel 1. The gas first enters the valve core 21 through the inlet 224 and pushes the valve core 21 from the second working position to the first working position, thereby aligning the second valve hole 211 on the valve core 21 with the first valve hole 221 on the inlet body 22, thereby opening the valve port 222, allowing CO2 gas to enter the outlet hole 2221 on the inlet body 22 through the valve port 222, and then flow into the reaction chamber 11 through the outlet hole 2221 to react with the chemical solution therein.

[0054] As CO2 gas flows continuously through valve core 21, it can also drive the drive blade 5121 in valve core 21 to rotate. The drive blade 5121 can drive the entire stirring shaft 51 to rotate. The stirring shaft 51 can drive the stirring blade 52 located on the stirring section 511 of the stirring shaft 51 to rotate. Thus, the chemical solution in the reaction chamber 11 can be stirred by the stirring blade 52, improving the reaction efficiency of CO2 gas in it. The stirring blade 52 can also remove the device adhering to the inner wall of the reaction chamber 11.

[0055] After the CO2 gas has completely reacted in the reaction chamber 11, the valve core 21 will move from the first working position to the second working position under the action of the reset part 23, thereby closing the connection between the inlet 224 and the outlet 2221, preventing the solution in the reaction chamber 11 from flowing out. The CO2 gas that has completed the reaction can then flow out through the reaction outlet 14 to other equipment for subsequent liquefaction and storage. The CO2 capture reactor of this disclosure can open or close the connection between the inlet 224 and the outlet 2221 in a timely manner without the need for personnel to observe and operate it, preventing liquid from flowing out of the reaction chamber 11 due to personnel negligence, which could cause equipment damage and safety accidents.

[0056] A second aspect of this disclosure also relates to a CO2 capture device, see [link to relevant documentation]. Figure 1 and Figure 6 The CO2 capture device disclosed herein includes an inlet pipe 3, an outlet pipe 4, and a reactor and a filter 9 located between the inlet pipe 3 and the outlet pipe 4. The reactor is the CO2 capture reactor mentioned in the above embodiments. The inlet pipe 3 is connected to the reaction inlet 13 of the reaction vessel 1. The filter 9 is located between the reaction vessel 1 and the outlet pipe 4, and is connected to the reaction outlet 14 through a filter inlet 91, allowing the purified CO2 gas flowing out of the reaction outlet 14 to enter the filter 9 for further filtration to remove impurities. The filter outlet 92 is connected to the outlet pipe 4, allowing the purified CO2 to flow out through the outlet pipe 4 to other equipment for liquefaction and storage processes.

[0057] See Figure 6 In this embodiment, the filter 9 is cylindrical and includes a filter cylinder 94. The lower opening of the filter cylinder 94 is a filter inlet 91, which is connected to the reaction outlet 14 of the reaction vessel 1. The upper opening of the filter cylinder 94 is a filter outlet 92, which is connected to the outlet pipe 4. A filter plate 93 is also provided in the filter cylinder 94. The filter plate 93 can be made of materials such as activated carbon that can adsorb impurities in CO2 gas. The filter plate 93 can filter the CO2 gas that has completed the reaction flowing into the filter cylinder 94, thereby removing impurities. Of course, in other embodiments, the filter may also include other devices, as long as the filtration effect can be achieved. The specific design can be determined according to the actual situation, and this disclosure does not impose any limitations on this.

[0058] In one embodiment of this disclosure, see Figure 1 and Figure 5The CO2 capture device disclosed herein also includes a gas buffer 8. The gas buffer 8 is disposed between the reactor 1 and the filter 9, and includes a gas buffer inlet 81 and a gas buffer outlet 82. The gas buffer inlet 81 is connected to the reaction outlet 14 of the reactor 1, and the gas buffer outlet 82 is connected to the filter inlet 91 of the filter 9. By providing the gas buffer 8, after the CO2 gas reaction in the reactor 1 is completed, it enters the gas buffer 8 through the reaction outlet 14 and the gas buffer inlet 81. This allows some of the heavier impurities in the CO2 gas to settle in the gas buffer 8 during its flow, thereby reducing the impurities in the CO2 gas entering the filter 9 and improving the filtration effect of the filter 9.

[0059] In one embodiment of this disclosure, see Figure 1 and Figure 5 The CO2 capture device disclosed herein also includes a dryer 6. The dryer 6 is located between the reactor 1 and the filter 9, and can dry the CO2 gas that has completed the reaction in the reactor 1, reducing the moisture content of the CO2 gas entering the filter 9, thereby facilitating subsequent collection, liquefaction, and storage of the filtered gas. The dryer 6 includes a drying cylinder 61 and a mounting frame 62. The drying cylinder 61 has a drying inlet 65 and a drying outlet 66, located at opposite ends of the drying cylinder 61. The drying inlet 65 is connected to the reaction outlet 14 on the reactor 1, allowing the CO2 gas to directly enter the drying cylinder 61 for drying. The drying outlet 66 is connected to the filter inlet 91 of the filter 9, allowing the dried CO2 to enter the filter 9 for filtration.

[0060] The mounting frame 62 is mounted on the side wall of the drying cylinder 61 and fixedly connected to it. A fan 63 and a radiator 75 are housed within the mounting frame 62. Multiple drying holes 64 facing the fan 63 are provided on the side wall of the drying cylinder 61. When the CO2 gas in the drying cylinder 61 needs to be dried, the radiator 75 dissipates heat, and the fan 63 blows the heat from the radiator 75 into the drying cylinder 61, drying the CO2 gas. In this embodiment, the fan 63 can be an axial flow fan, and the radiator 75 can be a heating wire fixedly connected to the mounting frame 62. Operators can activate the radiator 75 and fan 63 according to the reaction time of the CO2 in the reactor 1, causing the dryer 6 to start working and dry the CO2 passing through the drying cylinder 61.

[0061] In one embodiment of this disclosure, see Figure 1 and Figure 5The CO2 capture device disclosed herein also includes a heat conduction mechanism 7, which can conduct the heat generated by the chemical reaction in the reactor 1 to the dryer 6, thereby providing heat to the radiator 75 in the dryer 6. This not only makes reasonable use of the heat generated by the chemical reaction in the reactor 1 to dry the CO2 gas in the dryer 6, but also avoids setting up a separate heat source for the radiator 75, thus saving energy.

[0062] In this embodiment, see Figure 5 The heat conduction mechanism 7 includes a first heat conduction pipe 71, a second heat conduction pipe 72, a liquid pump 73, and a heat conduction sleeve 74. The heat conduction sleeve 74 surrounds the outer surface of the reactor 1. The first heat conduction pipe 71 is at least partially spirally arranged in the heat conduction sleeve 74, which contains a heat conduction medium that can absorb the heat generated by the chemical reaction in the reactor 1. One end of the first heat conduction pipe 71 is connected to the medium inlet of the radiator 75, and the other end is connected to the second heat conduction pipe 72. The second heat conduction pipe 72 is located outside the heat conduction sleeve 74, with one end connected to the first heat conduction pipe 71 and the other end connected to the medium outlet of the radiator 75. The liquid pump 73 is installed on the first heat conduction pipe 71 or the second heat conduction pipe 72 to drive the flow of the heat dissipation medium in the first heat conduction pipe 71 and the second heat conduction pipe 72.

[0063] When CO2 gas is introduced into the reactor 1 to carry out a chemical reaction and release heat, the heat generated by the reaction can be collected by the heat-conducting sleeve 74 to prevent it from dissipating into the air. This allows the heat-conducting medium in the first heat-conducting pipe 71 in the heat-conducting sleeve 74 to absorb the heat. As the liquid pump 73 operates, the heat-carrying heat-conducting medium is transported to the radiator 75 located in the mounting frame 62 to dissipate heat and cool down. The cooled heat-conducting medium will then flow back to the first heat-conducting pipe 71 along the second heat-conducting pipe 72 to absorb heat, thereby continuously providing heat to the radiator 75.

[0064] In one embodiment of this disclosure, see Figure 5The first heat-conducting pipe 71 includes a spiral section 711 and a first straight section 712. The spiral section 711 can be made of a heat-conducting material, so that the heat-conducting medium in the spiral section 711 can absorb more heat. The first straight section 712 can be made of an insulating material, so that the heat-conducting medium in the first straight section 712 can lose less heat during the flow process. The second heat pipe 72 includes a second straight pipe section 721, which can also be made of heat-insulating material to reduce the heat dissipated by the heat-conducting medium. One end of the first straight pipe section 712 is connected to the threaded pipe section 711, and the other end is connected to the medium inlet of the radiator 75. One end of the second straight pipe section 721 is connected to the medium outlet of the radiator 75. Two liquid pumps 73 are respectively installed in the first straight pipe section 712 and the second straight pipe section 721. Through the two liquid pumps 73, the flow rate of the heat-conducting medium in the first heat pipe 71 and the second heat pipe 72 can be accelerated, providing more heat to the radiator 75 and improving the drying efficiency of the dryer 6.

[0065] When the CO2 capture device disclosed herein is in use, the CO2 gas to be purified is introduced into the reaction inlet 13 of the reaction vessel 1 through the inlet pipe 3. The specific reaction process of CO2 in the reaction vessel 1 is described in the above embodiments and will not be repeated here. After the reaction is completed, the CO2 gas flows out through the reaction outlet 14 into the gas sump 8, where some of the heavier impurities are re-settled into the reaction chamber 11.

[0066] The CO2 gas passing through the gas venting cylinder 8 continues to flow into the drying cylinder 61 in the dryer 6. At this time, the heat conduction mechanism 7 conducts the heat generated by the chemical reaction in the reactor 1 to the radiator 75 located in the mounting frame 62 through the first heat conduction pipe 71, the second heat conduction pipe 72 and the liquid pump 73. The fan 63 blows air onto the radiator 75, so that the gas entering the drying cylinder 61 through the drying hole 64 has a higher temperature, thereby drying the CO2 in the drying cylinder 61.

[0067] The dried CO2 gas then flows into filter 9 for further filtration. Finally, the filtered CO2 gas flows out through outlet pipe 4 to other equipment for subsequent liquefaction and storage. This disclosed CO2 capture device can process the CO2 gas from the reaction vessel 1 through a dryer, filter, and heat-conducting mechanism, obtaining purer CO2 gas. It also fully utilizes the heat generated by the chemical reaction in the reaction vessel 1, saving energy.

[0068] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0070] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A CO2 capture reactor, characterized in that, include: A reaction vessel has a reaction inlet and a reaction outlet, a reaction chamber located between the two, and a drain outlet communicating with the reaction chamber; The air intake mechanism includes an air intake body installed at the reaction air inlet, a valve core movably disposed within the air intake body, and a reset part. The air intake body has an air outlet located at the bottom of the reaction chamber, an air inlet for communicating with a CO2 pressure gas source, and a valve port located between the air outlet and the air inlet. The valve core is configured to have a first working position and a second working position. In the first working position, the valve core is pushed by CO2 gas entering from the air inlet to open the valve port, so that the CO2 gas enters the reaction chamber through the valve port and the air outlet. In the second working position, as the CO2 gas pressure decreases, the valve core is reset by the reset part to close the valve port. The air intake body includes a first cylinder, the valve core is formed as a third cylinder, the outer wall of the third cylinder is attached to the inner wall of the first cylinder, and the reset part is disposed between the top wall of the third cylinder and the first cylinder. A stirring device includes a stirring shaft, which includes a stirring section and a driving section arranged axially. The stirring section has multiple stirring blades distributed on it. The driving section is rotatably connected to the air intake body and has multiple driving blades connected to it. The multiple driving blades are arranged toward the air inlet to drive the stirring shaft to rotate through the flow of gas entering from the air inlet. The valve core is movably sleeved outside the driving section.

2. The CO2 capture reactor according to claim 1, characterized in that, The valve port includes a first valve hole, and the air intake body includes a first cylinder with the first valve hole on its side wall and a second cylinder connected to the outside of the side wall of the first cylinder and communicating with the inside of the first cylinder through the first valve hole. The second cylinder extends from the first cylinder into the reaction chamber, and the air outlet is formed on the side wall of the second cylinder. The valve core, which moves between the first working position and the second working position, can open and close the first valve hole.

3. The CO2 capture reactor according to claim 2, characterized in that, The valve port also includes a second valve hole. The third cylinder is open at one end facing the air inlet. The second valve hole is formed on the side wall of the third cylinder. In the first working position, the second valve hole is aligned and connected with the first valve hole. In the second working position, the second valve hole and the first valve hole are staggered and cut off.

4. The CO2 capture reactor according to claim 2, characterized in that, The reset part is an elastic element located at the end of the valve core and the first cylinder away from the air inlet. The elastic element is a compression spring. The second cylinder consists of multiple circumferentially spaced elements surrounding the first cylinder. Each second cylinder has multiple air outlets distributed axially.

5. A CO2 capture device, characterized in that, The device includes an inlet pipe, an outlet pipe, and a reactor and a filter located between the inlet pipe and the outlet pipe. The reactor is a CO2 capture reactor according to any one of claims 1 to 4. The inlet pipe is connected to the reaction inlet, the filter inlet is connected to the reaction outlet, and the outlet pipe is connected to the filter outlet.

6. The CO2 capture device according to claim 5, characterized in that, A dryer is also provided between the reactor and the filter. The dryer includes a drying cylinder and a mounting frame. The mounting frame is fixedly connected to the outside of the drying cylinder and is provided with a radiator and a fan that blows the heat from the radiator to the drying cylinder. The side wall of the drying cylinder is provided with a plurality of drying holes facing the fan, and has a drying air inlet communicating with the reaction outlet and a drying air outlet communicating with the filter inlet.

7. The CO2 capture device according to claim 6, characterized in that, It also includes a heat-conducting mechanism for transferring the reaction heat in the reactor to the dryer. The heat-conducting mechanism includes a first heat-conducting pipe, a second heat-conducting pipe, a liquid pump, and a heat-conducting sleeve. The heat-conducting sleeve surrounds the outer surface of the reactor. The first heat-conducting pipe is at least partially spirally inserted into the heat-conducting sleeve, with one end connected to the medium inlet of the radiator and the other end connected to the second heat-conducting pipe. The second heat-conducting pipe is connected to the medium outlet of the radiator. The liquid pump is used to drive the medium to circulate in the first heat-conducting pipe and the second heat-conducting pipe.

8. The CO2 capture device according to claim 7, characterized in that, The first heat pipe includes a spiral section and a first straight section, and the second heat pipe includes a second straight section. One end of the first straight section is connected to the spiral section, and the other end is connected to the medium inlet of the radiator. One end of the second straight section is connected to the medium outlet of the radiator. The liquid pumps are two pumps respectively installed in the first straight section and the second straight section.

9. The CO2 capture device according to claim 5, characterized in that, It also includes a gas sump, wherein the gas sump inlet of the gas sump is directly connected to the reaction outlet, and the gas sump outlet is connected to the filter inlet.

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