Adsorption column for carbon dioxide production

Abstract

This invention discloses an adsorption tower for carbon dioxide production, comprising a tower body, a spray device disposed within the tower body, a fan wheel fixed to the drive shaft of the spray device, and an air inlet pipe inserted into the side wall of the tower body and tangential to the fan wheel. The spray device includes at least one horizontally arranged spray pipe and a gear transmission assembly disposed between all the spray pipes and the drive shaft. When the air inlet pipe blows high-pressure airflow onto the fan wheel, the fan wheel drives the drive shaft to rotate, and the drive shaft drives all the spray pipes to rotate synchronously through the gear transmission assembly. This invention utilizes a fan wheel to drive all the spray pipes to rotate within the tower body, and the fan wheel is directly driven by the incoming high-pressure airflow, eliminating the need for separate motors or electric actuators, thus reducing the number of components involved and lowering the production cost of the adsorption tower.

Description

Technical Field

[0001] This invention relates to the field of carbon dioxide purification technology, and in particular to an adsorption tower for carbon dioxide production. Background Technology

[0002] Industrial production processes typically generate large amounts of industrial waste gas, which is currently mostly purified using adsorption towers. The industrial waste gas is injected from the bottom of the adsorption tower and circulated with an absorbent liquid. The tower is filled with adsorption devices, and the absorbent liquid falls into these devices and is evenly distributed throughout, increasing the contact area between the waste gas and the absorbent liquid. This allows for thorough mixing and absorption, achieving the goal of purifying the industrial waste gas.

[0003] Existing adsorption towers suffer from blind spots in their spraying, resulting in limited contact area between the spraying liquid and the gas, leading to poor purification efficiency. To address this, a small number of existing spray towers incorporate a horizontally running water pipe within the tower body to transport the spraying liquid. This water pipe rotates relative to the tower body under the drive of a belt drive mechanism. Taking patent CN114797390B as an example, an electric push rod is installed on the side wall of the tower body. This electric push rod is connected to the belt drive mechanism via a gear and rack mechanism, causing the belt drive mechanism to rotate the water pipe under the drive of the electric push rod, thereby increasing the spraying range. However, the rotation of the existing spray pipe requires a separate driving component to provide the driving force, resulting in excessively high production costs for the adsorption tower. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an adsorption tower for carbon dioxide production, in which the impeller drives all the spray pipes to rotate inside the tower under the impetus of high-pressure airflow, eliminating the need for a drive component and helping to reduce the production cost of the adsorption tower.

[0005] The adsorption tower for carbon dioxide production provided by the present invention includes a tower body, a spraying device disposed in the tower body, a fan wheel fixed to the drive shaft of the spraying device, and an air inlet pipe inserted into the side wall of the tower body and tangential to the fan wheel; the spraying device includes at least one horizontally arranged spraying pipe and a gear transmission assembly disposed between all the spraying pipes and the drive shaft; when the air inlet pipe blows high-pressure airflow to the fan wheel, the fan wheel drives the drive shaft to rotate, and the drive shaft drives all the spraying pipes to rotate synchronously through the gear transmission assembly.

[0006] Preferably, the spraying device further includes at least one driven shaft and a rotating disk disposed between all the spray pipes and all the driven shafts; the gear transmission assembly includes:

[0007] A planetary gear set located between the driving shaft and all driven shafts;

[0008] At least one set of bevel gears is provided between each spray pipe and the rotating disk and between each driven shaft and the rotating disk.

[0009] Preferably, the spraying device further includes an inlet pipe for supplying spraying liquid and a pipe fitting assembly connecting the inlet pipe and all the spraying pipes. The pipe fitting assembly includes at least one horizontal pipe fitting that corresponds to each of the spraying pipes, and each horizontal pipe fitting is detachably connected to the connected spraying pipe.

[0010] Preferably, one end of the inlet pipe is integrally provided with an inlet connector. The connector assembly also includes a vertical connector rotatably sleeved outside the inlet pipe and a sealing support fixedly sleeved on the inlet connector. The sealing support is provided with a sealing ring, and a rolling element for supporting the relative rotation of the two is provided between the sealing ring and the inner end face of the vertical connector.

[0011] Preferably, the spraying device further includes an outer casing, which includes:

[0012] A protective cover that surrounds the drive shaft, all driven shafts, and the rotating disk;

[0013] A gear ring that is fixed at the opening at the bottom of the protective cover and meshes with the planetary gear set;

[0014] Upper and lower pressure caps are respectively installed on the upper and lower sides of the spray pipe;

[0015] Protective covers that are fixedly connected to the upper pressure cap and the pipe fitting assembly respectively;

[0016] The upper pressure cover is fixedly connected to the protective cover, while the lower pressure cover is rotatably connected to the protective shield.

[0017] Preferably, it also includes a support plate fixed inside the tower body. The support plate includes a mounting plate for supporting the spraying device and a plurality of filling shells arranged in a ring around the outer periphery of the mounting plate. Each filling shell includes a filling cavity, a mesh plate fixed at both ends of the filling cavity, and separation packing material filling the filling cavity.

[0018] Preferably, it also includes at least one layer of adsorption devices fixed sequentially from top to bottom inside the tower body, with all adsorption devices located above the spraying device.

[0019] Preferably, each adsorption device includes a shaping ring and two perforated plates fixed at both ends of the shaping ring. The shaping ring and the two perforated plates form a packing cavity, which is filled with adsorption packing.

[0020] Preferably, at least one set of positioning components is provided between each adsorption device and the inner wall of the tower body; the inner wall of the tower body is provided with positioning holes; each set of positioning components includes:

[0021] A positioning block that fits snugly against the edge of the positioning hole;

[0022] A locking block that is fixed to the positioning block and engages with the stop block set in the positioning hole;

[0023] A sliding insert that can be inserted between the positioning block and the positioning hole;

[0024] The positioning rod passes sequentially through the adsorption device, the positioning block, and the insertion block;

[0025] A locking nut that is installed in the anti-rotation slot of the positioning block and cooperates with the positioning rod.

[0026] Preferably, it also includes a liquid supply device connected to the spraying device, the liquid supply device comprising:

[0027] A storage tank equipped with a replenishment port and a drain port;

[0028] Several partition plates fixed to the liquid storage tank and surrounding it to form a purification chamber;

[0029] A filter plate fixed inside the liquid storage tank and connected to the partition plate for filtering the spray liquid flowing into the purification chamber.

[0030] A liquid supply pipe connecting the spray device and the purification chamber;

[0031] A liquid supply pump located on the liquid supply pipe.

[0032] Compared to the prior art, this invention adds a wind turbine inside the tower body, which is mounted on the drive shaft of the spraying device. The air inlet pipe on the side wall of the tower body is tangent to the wind turbine, and a gear transmission assembly is provided between all the spray pipes of the spraying device and the drive shaft. When the air inlet pipe blows high-pressure airflow to the wind turbine, the wind turbine drives the drive shaft to rotate, and the drive shaft drives all the spray pipes to rotate synchronously through the gear transmission assembly, thereby increasing the spraying range.

[0033] This invention utilizes a fan to drive all the spray pipes to rotate within the tower. The fan is directly driven by the incoming high-pressure airflow, eliminating the need for additional driving components such as motors or electric push rods. This reduces the number of components involved and helps lower the production cost of the adsorption tower. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0035] Figure 1 This is a front view of an adsorption tower for carbon dioxide production provided in a specific embodiment of the present invention;

[0036] Figure 2 for Figure 1 Sectional view along line AA;

[0037] Figure 3 for Figure 1Front sectional view;

[0038] Figure 4 for Figure 3 A magnified view of part B in the image;

[0039] Figure 5 for Figure 1 Front view of the spraying device;

[0040] Figure 6 for Figure 5 A sectional view;

[0041] Figure 7 for Figure 5 A cross-sectional view of the assembly of the central bevel gear, spray pipe, and horizontal pipe joint;

[0042] Figure 8 for Figure 7 A partially enlarged sectional view of C;

[0043] Figure 9 for Figure 5 Partial sectional view of the central tube connector assembly;

[0044] Figure 10 for Figure 9 A magnified view of part D;

[0045] Figure 11 for Figure 5 Top view of the assembled fixed plate, drive shaft and driven shaft;

[0046] Figure 12 for Figure 5 Top view of the planetary gear set;

[0047] Figure 13 for Figure 1 Front view of the middle support plate;

[0048] Figure 14 for Figure 13 Axonometric view of the infilled shell;

[0049] Figure 15 for Figure 1 Axonometric view of the positioning component;

[0050] Figure 16 for Figure 15 State diagram of the middle interpolation block during sliding;

[0051] Figure 17 for Figure 1 Assembly diagram of the positioning component and the inner wall of the tower.

[0052] The attached figures are labeled as follows:

[0053] 1. Tower body; 2. Spraying device; 3. Wind turbine; 4. Air inlet pipe; 5. Support plate; 6. Adsorption device; 7. Positioning assembly; and 8. Liquid supply device.

[0054] Positioning hole 11, support leg 12, tower top 13, air outlet pipe 14, and inspection window 15;

[0055] Spray pipe 21, drive shaft 22, driven shaft 23, rotating disk 24, liquid inlet pipe 25, pipe fitting assembly 26, connecting bevel gear 27, flexible connection assembly 28, and outer casing 29;

[0056] Connecting flange 211 and nozzle 212;

[0057] Stepped slide 2111;

[0058] Fixed disc 221 and center wheel 222;

[0059] Driven gear 231 and planetary gear 232;

[0060] Liquid inlet connector 251;

[0061] Horizontal pipe joint 261, positioning joint 262, joint seal 263, vertical pipe joint 264, external locking nut 265, internal locking nut 266, sealing plug 267, sealing support 268, shaft end retaining ring 269, and liquid inlet sealing ring 2610;

[0062] Liquid collection cavity 2641;

[0063] Sealing ring 2681 and rolling element 2682;

[0064] Connecting card slot 271;

[0065] Slide rod 281, connecting block 282, reset elastic element 283 and limit baffle 284;

[0066] Protective cover 291, gear ring 292, upper pressure cover 293, lower pressure cover 294, and protective cover 295;

[0067] Mounting plate 51, filling shell 52, mesh plate 53, and fixing plate 54;

[0068] Shaping ring 61, perforated plate 62, and adsorption filler 63;

[0069] Positioning block 71, stop block 72, locking block 73, insert block 74, positioning rod 75, locking nut 76, and sealing block 77;

[0070] Anti-rotation slot 711;

[0071] Liquid storage tank 81, purification chamber 82, partition plate 83, filter plate 84, liquid supply pipe 85, and liquid supply pump 86;

[0072] Infusion port 811 and drainage port 812. Detailed Implementation

[0073] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0074] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0075] This invention discloses an adsorption tower for carbon dioxide production. Please refer to [link / reference]. Figures 1 to 3 The system includes a tower body 1, a spray device 2, a wind turbine 3, and an air inlet pipe 4. A receiving cavity is formed at the center of the tower body 1, primarily for containing the gas. Support legs 12 are provided at the bottom of the tower body 1 to support it. An opening is provided at the top of the tower body 1, and a tower top 13 is installed at the opening. The tower top 13 is an upwardly convex conical structure, and an air outlet pipe 14 is fixed at the top of the tower top 13 for discharging the purified gas. An inspection window 15 is fixed on the front side wall of the tower body 1. A transparent inspection door can be installed on the inspection window 15 for convenient maintenance.

[0076] The spray device 2 is located inside the tower body 1 and at the bottom of the tower body 1. The spray device 2 includes a rotatable drive shaft 22, which is vertically positioned inside the tower body 1, with its centerline parallel to the centerline of the tower body 1. A wind turbine 3 is fixed to the drive shaft 22, driving the drive shaft 22 to rotate. An air inlet pipe 4 is inserted into the side wall of the tower body 1, with one end of the air inlet pipe 4 bent towards the wind turbine 3 until the air inlet pipe 4 is tangent to the wind turbine 3. Figure 2 As shown, this increases the thrust applied to the impeller 3 by the airflow, and the high-pressure airflow flowing out of the intake pipe 4 can drive the impeller 3 to rotate rapidly. The drive shaft 22 and the impeller 3 can be connected by a key. The structure and installation method of the impeller 3 can refer to the existing technology, and will not be described in detail here.

[0077] like Figures 5 to 12 As shown, the spraying device 2 also includes at least one horizontally arranged spray pipe 21 and a gear transmission assembly located between all the spray pipes 21 and the drive shaft 22. When the air inlet pipe 4 blows high-pressure airflow to the impeller 3, the impeller 3 drives the drive shaft 22 to rotate, and the drive shaft 22 drives all the spray pipes 21 to rotate synchronously through the gear transmission assembly, thereby increasing the spraying range.

[0078] Each spray pipe 21 is perpendicular to the centerline of the tower body 1. Multiple nozzles 212 are evenly spaced at the bottom of each spray pipe 21. The liquid sprayed by each nozzle 212 comes into countercurrent contact with the exhaust gas to achieve purification. The length of the spray pipe 21 determines the spray range. Specifically, two spray pipes 21 are symmetrically arranged inside the tower body 1. The number of spray pipes 21 and the number of nozzles 212 installed on each spray pipe 21 can be adaptively adjusted according to design requirements and are not specifically limited here.

[0079] In summary, this invention utilizes the impeller 3 to drive all the spray pipes 21 to rotate within the tower body 1. The impeller 3 is directly driven by the incoming high-pressure airflow, eliminating the need for additional motors or electric actuators, thus reducing the number of components and lowering the production cost of the adsorption tower. Furthermore, the drive shaft 22 and the spray pipes 21 employ gear transmission instead of the original belt drive, resulting in higher transmission efficiency and consequently improved purification efficiency.

[0080] The spraying device 2 also includes at least one driven shaft 23 and a rotating disk 24 disposed between all the spray pipes 21 and all the driven shafts 23. All the driven shafts 23 are also vertically disposed within the tower body 1, and are all parallel to the drive shaft 22. All the driven shafts 23 are arranged in a ring around the drive shaft 22. Specifically, four driven shafts 23 are distributed around the outer periphery of the drive shaft 22. A fixed disk 221 is fitted onto the drive shaft 22, and all the driven shafts 23 pass through the fixed disk 221, allowing the fixed disk 221 to support each shaft. Bearings are installed between the drive shaft 22 and the fixed disk 221, and between each driven shaft 23 and the fixed disk 221, allowing the drive shaft 22 and each driven shaft 23 to be rotatably mounted on the fixed disk 221. The rotating disk 24 is disposed between all the spray pipes 21 and all the driven shafts 23, transmitting power from the driven shafts 23 to each spray pipe 21. The rotating disk 24 is disc-shaped, with recessed grooves at both its upper and lower ends, and internal gear rings are formed on the inner sidewalls of the recessed grooves.

[0081] The gear transmission assembly includes a planetary gear set between the drive shaft 22 and all driven shafts 23, and at least one set of bevel gears between each spray pipe 21 and the rotating disk 24, and between each driven shaft 23 and the rotating disk 24. When the drive shaft 22 rotates, it drives all driven shafts 23 to rotate via the planetary gear set. All driven shafts 23 then drive the rotating disk 24 to rotate via the bevel gear set. The rotating disk 24 then drives all spray pipes 21 to rotate via the bevel gear set, thereby increasing the spraying range.

[0082] The drive shaft 22 drives each driven shaft 23 to rotate synchronously via a planetary gear set. The planetary gear set includes a central gear 222 fixed to the drive shaft 22, planetary gears 232 fixed to each driven shaft 23, and a gear ring on the gear ring 292. The central gear 222 and each planetary gear 232 are bevel gears, and the gear ring is correspondingly a bevel gear ring. The large-diameter end of the central gear 222 faces upwards, and the large-diameter ends of each planetary gear 232 face downwards. This assembly method between the central gear 222 and each planetary gear 232, in addition to efficiently transmitting power, also axially limits the drive shaft 22 and each driven shaft 23. Of course, the central gear 222 and each planetary gear 232 can also be cylindrical gears, still achieving power transmission.

[0083] Each spray pipe 21 is externally connected to a connecting bevel gear 27. A conical gear ring is provided at the end of the rotating disk 24 near the spray pipe 21, and all connecting bevel gears 27 on the outside of each spray pipe 21 mesh with the conical gear ring. Each driven shaft 23 has a driven gear 231 fixed to its top end, and a driven gear ring is provided at the end of the rotating disk 24 near the driven shaft 23. All driven gears 231 on the driven shafts 23 mesh with the driven gear rings. The driven gear 231 can be a bevel gear or a cylindrical gear, and the type of driven gear ring varies depending on the driven gear 231; no specific limitation is made here.

[0084] The spray device 2 also includes an inlet pipe 25 and a pipe fitting assembly 26. The inlet pipe 25 may be L-shaped and is used to supply spray liquid. The pipe fitting assembly 26 connects the inlet pipe 25 to all the spray pipes 21. The pipe fitting assembly 26 includes at least one horizontal pipe fitting 261, and all horizontal pipe fittings 261 are connected one-to-one with all the spray pipes 21. Each horizontal pipe fitting 261 is detachably connected to the connected spray pipe 21 for easy installation of the spray pipes 21.

[0085] A connecting bevel gear 27 is rotatably sleeved on the outside of the horizontal pipe joint 261. A connecting flange 211 is integrally provided at the end of each spray pipe 21. The connecting bevel gear 27 is inserted and connected to the connecting flange 211. Several sets of elastic connecting components 28 are provided on the opposite sides of the connecting bevel gear 27 and the connecting flange 211, so that the horizontal pipe joint 261 and the spray pipe 21 can be quickly connected and quickly separated.

[0086] The connecting bevel gear 27 and the connecting flange 211 are respectively provided with stepped grooves 2111 and connecting slots 271 on their opposite sides. Specifically, the outer surface of the connecting flange 211 is provided with a plurality of stepped grooves 2111, all of which are evenly distributed along the circumference of the connecting flange 211. The connecting bevel gear 27 is provided with a insertion hole at its center, which is a stepped hole, and the connecting slot 271 is specifically an annular conical groove provided on the stepped surface of the insertion hole. Of course, the structure of the connecting slot 271 is not limited to this.

[0087] Each set of elastic connection components 28 includes a slide rod 281, a connecting block 282, a reset elastic element 283, and a limiting baffle 284. The slide rod 281 is slidably inserted into the stepped slide groove 2111, and slides under the guidance of the small diameter section of the stepped slide groove 2111. The length of the slide rod 281 is less than the length of the stepped slide groove 2111, but it must be ensured that the slide rod 281 always slides along the small diameter section of the stepped slide groove 2111. The connecting block 282 is fixed to the end of the slide rod 281 and slides synchronously with the slide rod 281 until it engages with the connecting slot 271. The outer surface of the connecting block 282 can be conical to facilitate quick docking and quick separation. The reset elastic element 283 is sleeved on the slide rod 281, and its two ends abut against the connecting block 282 and the stepped surface of the stepped slide groove 2111, respectively. The reset elastic element 283 can be a common cylindrical spring, used to assist the connecting block 282 in resetting. The limiting baffle 284 is fixed in the groove of the stepped slide 2111. The connecting block 282 is integrally provided with a stop flange. When the connecting block 282 is fully extended, the stop flange abuts against the limiting baffle 284, preventing the connecting block 282 from disengaging from the stepped slide 2111.

[0088] When the connecting flange 211 is inserted into the insertion hole of the connecting bevel gear 27, the connecting blocks 282, under the pressure of the inner wall of the insertion hole, drive the slide rod 281 to retract into the stepped slide groove 2111, and the reset elastic element 283 undergoes elastic deformation under pressure. When the connecting block 282 is radially opposite to the connecting groove 271, the reset elastic element 283 restores its elastic deformation, and the slide rod 281, under the action of elastic force, drives the connecting block 282 to slide along the stepped slide groove 2111 until the connecting block 282 is fully extended from the stepped slide groove 2111, and the connecting block 282 abuts against the connecting groove 271, enabling quick docking between the horizontal pipe joint 261 and the spray pipe 21. Conversely, quick separation can be achieved by quickly pulling out the connecting flange 211.

[0089] The pipe fitting assembly 26 also includes a positioning joint 262 rotatably disposed at the end of the horizontal pipe fitting 261. The positioning joint 262 is coaxially and fixedly connected to the connecting bevel gear 27, and rotates synchronously with the connecting bevel gear 27. The end faces of the positioning joint 262 and the connecting bevel gear 27 are fixed together by several connecting bolts. A positioning protrusion and a positioning groove are provided between the positioning joint 262 and the large-diameter end of the connecting bevel gear 27 to improve the installation accuracy between the connecting bevel gear 27 and the horizontal pipe fitting 261, facilitating accurate and rapid installation of the horizontal pipe fitting 261. A bearing is provided between the positioning joint 262 and the horizontal pipe fitting 261 to support the rotation of the positioning joint 262 relative to the horizontal pipe fitting 261.

[0090] The pipe fitting assembly 26 also includes a joint seal 263 disposed between the horizontal pipe fitting 261 and the positioning fitting 262 to ensure good sealing between the horizontal pipe fitting 261 and the positioning fitting 262 and prevent leakage. The joint seal 263 may be a rotary mechanical seal, but its type is not limited to this. For details on the structure and working principle of a rotary mechanical seal, please refer to existing technologies, which will not be elaborated here.

[0091] The pipe fitting assembly 26 also includes a vertical pipe fitting 264, an outer locking nut 265, an inner locking nut 266, and a sealing plug 267. The vertical pipe fitting 264 is rotatably sleeved on the outside of the inlet pipe 25 and can rotate relative to the inlet pipe 25, used to connect each horizontal pipe fitting 261 to the inlet pipe 25. The end of the vertical pipe fitting 264 away from the inlet pipe 25 has an open liquid collecting cavity 2641. All horizontal pipe fittings 261 are vertically connected to the liquid collecting cavity 2641. The spray liquid flowing in from the inlet pipe 25 first gathers into the liquid collecting cavity 2641 of the vertical pipe fitting 264, and then flows evenly from the liquid collecting cavity 2641 into each horizontal pipe fitting 261, and finally flows through each horizontal pipe fitting 261 to the connected spray pipe 21.

[0092] The outer locking nut 265 and the inner locking nut 266 are respectively sleeved on the inlet pipe 25. The outer locking nut 265 is located outside the vertical pipe connector 264 and abuts against the outer end face of the vertical pipe connector 264. The inner locking nut 266 is located inside the liquid collecting cavity 2641 and abuts against the inner end face of the vertical pipe connector 264, so that the vertical pipe connector 264 is fixed to the inlet pipe 25 by means of the outer locking nut 265 and the inner locking nut 266. Of course, the connection method between the vertical pipe connector 264 and the inlet pipe 25 is not limited to this. The sealing plug 267 is fixed at the opening of the liquid collecting cavity 2641 to seal the liquid collecting cavity 2641, so that the liquid collecting cavity 2641 forms a closed cavity.

[0093] The vertical pipe joint 264 has a cylindrical groove at the end away from the liquid collecting cavity 2641. A bearing is installed in the cylindrical groove and is sleeved on the liquid inlet pipe 25, allowing the vertical pipe joint 264 and the liquid inlet pipe 25 to rotate relative to each other. A shaft end retaining ring 269 is installed on the outer end face of the vertical pipe joint 264. The shaft end retaining ring 269 is fixed and pressed against the end face of the vertical pipe joint 264 by an outer locking nut 265. The shaft end retaining ring 269 is used to axially limit the bearing installed in the cylindrical groove.

[0094] One end of the inlet pipe 25, which is inserted into the liquid collecting cavity 2641, is integrally provided with an inlet connector 251. The diameter of the inlet connector 251 is smaller than the diameter of the inlet pipe 25. The pipe connector assembly 26 also includes a sealing support 268 fixedly fitted to the inlet connector 251. The sealing support 268 is provided with a sealing ring 2681. A rolling element 2682 is provided between the sealing ring 2681 and the inner end face of the vertical pipe connector 264 to support the relative rotation of the two and reduce the friction between the opposite ends of the sealing ring 2681 and the vertical pipe connector 264. Specifically, the rolling element 2682 can be a ball bearing. The cross-section of the sealing ring 2681 is semi-circular, and a semi-circular groove is provided at the end of the sealing ring 2681 near the vertical pipe connector 264 for installing the rolling element 2682.

[0095] A limiting protrusion and a limiting groove are provided between the inner end face of the vertical pipe joint 264 and the sealing support 268 to restrict their relative movement along the radial direction of the vertical pipe joint 264. Specifically, the limiting protrusion can be a cylindrical protrusion located on the inner end face of the vertical pipe joint 264, and the limiting groove can be an arcuate groove located on the sealing support 268. Of course, the structure of the limiting protrusion and the limiting groove is not limited to these.

[0096] The pipe fitting assembly 26 also includes an inlet sealing ring 2610 disposed between the vertical pipe fitting 264 and the inlet fitting 251 to prevent leakage between the vertical pipe fitting 264 and the inlet fitting 251. The inlet sealing ring 2610 can specifically be an O-ring, but is not limited to this. Multiple inlet sealing rings 2610 can be provided, and all inlet sealing rings 2610 are staggered along the axial direction of the inlet fitting 251 to ensure that the pipe fitting assembly 26 has good sealing performance.

[0097] The aforementioned spray device 2 also includes an outer casing 29, which includes a protective cover 291, a gear ring 292, an upper pressure cover 293, a lower pressure cover 294, and a protective cover 295. The protective cover 291 covers the drive shaft 22, all driven shafts 23, and rotating disk 24, mainly serving a protective function to prevent foreign objects from affecting the smooth rotation of each gear and thus improving reliability. The gear ring 292 is fixed to the opening at the bottom of the protective cover 291 by fastening screws. The gear ring on the inner side wall of the gear ring 292 meshes with the planetary gear set, so that the drive shaft 22 drives the protective cover 291 to rotate synchronously with the drive shaft 22 through the gear ring 292.

[0098] Upper pressure cap 293 and lower pressure cap 294 are respectively located on the upper and lower sides of the spray pipe 21, and are fixedly connected to each other on opposite sides to further prevent foreign objects from entering the gears. Bearings are provided between the upper pressure cap 293, lower pressure cap 294, and spray pipe 21 to support the rotation of the spray pipe 21 relative to the upper pressure cap 293 and lower pressure cap 294. Protective cover 295 is fixedly connected to the upper pressure cap 293 and pipe joint assembly 26, and specifically fixedly connected to the outer wall of the vertical pipe joint 264. Upper pressure cap 293 is fixedly connected to protective cover 295, and lower pressure cap 294 is rotatably connected to protective cover 291. Protective cover 295, upper pressure cap 293, lower pressure cap 294, protective cover 291, and gear ring 292 form a closed cavity, effectively isolating the external environment from the gears and ensuring stable and reliable gear transmission.

[0099] like Figure 13 and Figure 14 As shown, the aforementioned adsorption tower for carbon dioxide production also includes a support plate 5 fixed within the tower body 1, used to support and define the position of the spray device 2. The support plate 5 has a split structure, including a mounting plate 51 and several filling shells 52. The mounting plate 51 has a central hole fixed to the support plate 5 for supporting the spray device 2. The bottom end of the drive shaft 22 and the bottom end of each driven shaft 23 are rotatably mounted in the mounting plate 51 by means of bearings. Each filling shell 52 is fan-shaped, and all the filling shells 52 form a ring. The frame of the support plate 5 includes several radially distributed fixing plates 54, and each filling shell 52 is fixed between two adjacent fixing plates 54.

[0100] Each filling shell 52 includes a filling cavity, mesh plates 53 fixed at both ends of the filling cavity, and separation packing material filled in the filling cavity. The separation packing material can specifically be Pall ring packing material, used for preliminary separation of harmful substances in the exhaust gas, but the type of non-separating packing material is not limited to this. In addition, when the airflow passes through the filling shell 52, the separation packing material can also increase the airflow path, making the spraying effect more thorough.

[0101] The aforementioned adsorption tower for carbon dioxide production also includes at least one layer of adsorption devices 6 fixed sequentially from top to bottom within the tower body 1. All adsorption devices 6 are located above the spray device 2. As the airflow, initially purified by the spray device 2, continues to flow from bottom to top within the tower body 1, it passes through each adsorption device 6 in sequence, and each adsorption device 6 purifies the airflow sequentially. The number of adsorption devices 6 can be adaptively adjusted according to the gas composition, flow rate, or volume of the airflow, and is not specifically limited here.

[0102] Each layer of adsorption device 6 includes a shaping ring 61 and two perforated plates 62 respectively fixed at both ends of the shaping ring 61. The shaping ring 61 and the two perforated plates 62 form a packing cavity, which is filled with adsorption packing 63 for purifying waste gas.

[0103] Specifically, the tower body 1 is equipped with three layers of adsorption devices 6. The adsorption packing materials 63 in the three layers of adsorption devices 6 are of different types. The uppermost adsorption device 6 is filled with activated carbon adsorption packing material, the middle adsorption device 6 is filled with ZSM-5 molecular sieve (Zeolite Socony Mobil-5), and the lowermost adsorption device 6 is filled with NaY molecular sieve (NaY zeolite, a sodium molecular sieve with a Y-type crystal structure). Of course, the types of adsorption packing materials 63 in each layer of adsorption devices 6 are not limited to these.

[0104] like Figure 4 As shown, at least one set of positioning components 7 is provided between each layer of adsorption device 6 and the inner wall of the tower body 1 to define the position of each layer of adsorption device 6 within the tower body 1. The inner wall of the tower body 1 is provided with positioning holes 11 that penetrate along the wall thickness direction of the tower body 1. A sealing block 77 is fixed to one end of the positioning hole 11 located outside the tower body 1 to seal the positioning hole 11 and prevent air leakage. The positioning component 7 is installed at the end of the positioning hole 11 located inside the tower body 1.

[0105] like Figures 15 to 17 As shown, each positioning assembly 7 includes a positioning block 71, a locking block 73, an insert block 74, a positioning rod 75, and a locking nut 76. The positioning block 71 is positioned close to the edge of the positioning hole 11, ensuring that the positioning block 71 is tightly attached to the inner wall of the tower body 1. The locking block 73 is integrally fixed to one end of the positioning block 71 near the inner wall of the tower body 1. The locking block 73 is T-shaped. Correspondingly, two stop blocks 72 are fixed inside the positioning hole 11. The two stop blocks 72 engage with the recessed portion of the locking block 73, preventing the positioning block 71 from disengaging from the positioning hole 11 radially along the tower body 1. Of course, the locking block 73 can also be L-shaped, C-shaped, or other similar shapes. The number and arrangement of the stop blocks 72 inside the positioning hole 11 can be adjusted accordingly to still achieve the purpose of this invention.

[0106] The insert 74 is slidably inserted between the positioning block 71 and the positioning hole 11. When the insert 74 slides into the positioning hole 11, the sum of the thicknesses of the insert 74 and the locking block 73 is the same as the height of the positioning hole 11. This restricts the locking block 73 from moving up and down relative to the positioning hole 11, allowing the positioning block 71 to be reliably fixed to the inner wall of the tower body 1 under the combined action of the locking block 73 and the insert 74. The positioning rod 75 passes through the adsorption device 6, the positioning block 71, and the insert 74 in sequence. The positioning block 71 is provided with an anti-rotation groove 711, and a locking nut 76 is installed in the anti-rotation groove 711. Rotating the positioning rod 75 engages with the locking nut 76, locking the positioning rod 75 and fixing the adsorption device 6 inside the tower body 1 by means of the positioning assembly 7. It should be noted that the locking nut 76 can be a hexagonal locking nut, and the anti-rotation groove 711 prevents the locking nut 76 from rotating, thus achieving the purpose of preventing loosening.

[0107] It should be noted that during assembly, first insert the locking block 73 into the positioning hole 11 until the positioning block 71 is tightly against the inner wall of the tower body 1. Then, install the two stop blocks 72 into the positioning hole 11 to fix the two stop blocks 72 in the positioning hole 11 and prevent the locking block 73 from falling out of the positioning hole 11. Next, insert the insert block 74 into the positioning hole 11. Finally, insert the positioning rod 75. The positioning rod 75 passes through the adsorption device 6, the positioning block 71 and the insert block 74 in sequence until the positioning rod 75 is inserted into the locking nut 76. Rotate the positioning rod 75 and the locking nut 76 locks the positioning rod 75. This fixes the adsorption device 6.

[0108] The aforementioned adsorption tower for carbon dioxide production also includes a liquid supply device 8 connected to the spray device 2. The liquid supply device 8 is located on the outside of the tower body 1 and is used to continuously supply spray liquid to the spray device 2. The liquid supply device 8 includes a storage tank 81, several partition plates 83, a filter plate 84, a supply pipe 85, and a supply pump 86. The storage tank 81 is used to store the spray liquid. A replenishment port 811 is provided at the top of the storage tank 81, and a replenishment pipe is connected to the top of the replenishment port 811 for replenishing the storage tank 81 with spray liquid. A drain port 812 is provided at the bottom of the storage tank 81, and a drain pipe is fixed at the drain port 812 for discharging the spray liquid from the storage tank 81. All partition plates 83 are fixed to the inner wall of the storage tank 81. Together with the inner wall of the storage tank 81, they form a purification chamber 82. The purification chamber 82 stores the purified spray liquid, allowing the filtered spray liquid to flow into the spray device 2 and preventing blockage of the spray pipe 21. A filter plate 84 is fixed inside the storage tank 81 and connected to the partition plates 83, used for filtering the liquid flowing into the purification chamber 82. The filter plate 84 can be a single layer or multiple layers. At least one filter plate 84 can be provided, or it can be arranged in a ring structure; no limitation is made here. A supply pipe 85 connects the spray device 2 and the purification chamber 82, allowing the spray liquid to flow into the spray device 2 along the supply pipe 85. A supply pump 86 is located in the supply pipe 85, providing driving force for the flow of the spray liquid. The structure and working principle of the supply pump 86 can be found in existing technology and will not be detailed here.

[0109] The working principle of the adsorption tower for carbon dioxide production provided by this invention is as follows:

[0110] Close the drain port 812 of the storage tank 81. The storage tank 81 stores a certain volume of spray liquid. Start the supply pump 86. The spray liquid in the storage tank 81 flows into the purification chamber 82 after being filtered by the filter plate 84. Then, it flows into the inlet pipe 25 of the spray device 2 from the purification chamber 82 along the supply pipe 85.

[0111] At the same time, high-pressure airflow is introduced into the tower body 1 through the air inlet pipe 4. The high-pressure airflow drives the impeller 3 to rotate. The impeller 3 drives the drive shaft 22 to rotate synchronously. The drive shaft 22 and its central wheel 222 rotate synchronously. The central wheel 222 drives each planetary gear 232 to rotate synchronously. Each planetary gear 232 drives its corresponding driven shaft 23 to rotate. The driven gear 231 on the driven shaft 23 drives the rotating disk 24 to rotate. The rotating disk 24 then drives the connecting bevel gear 27 to rotate. The connecting bevel gear 27 drives all the spray pipes 21 to rotate, thereby increasing the spray range.

[0112] After being initially purified by the spray device 2, the exhaust gas continues to flow from bottom to top in the tower body 1, passing through each layer of adsorption device 6 in sequence. After being purified by the adsorption packing 63 in each adsorption device 6, it is discharged from the exhaust pipe 14 set at the top of the tower 13.

[0113] The adsorption tower for carbon dioxide production provided by the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An adsorption tower for carbon dioxide production, characterized in that, The system includes a tower body (1), a spray device (2) installed inside the tower body (1), a wind turbine (3) fixed to the drive shaft (22) of the spray device (2), and an air inlet pipe (4) inserted into the side wall of the tower body (1) and tangent to the wind turbine (3). The spray device (2) includes at least one horizontally arranged spray pipe (21) and a gear transmission assembly between all the spray pipes (21) and the drive shaft (22). When the air inlet pipe (4) blows high-pressure airflow to the wind turbine (3), the wind turbine (3) drives the drive shaft (22) to rotate, and the drive shaft (22) drives all the spray pipes (21) to rotate synchronously through the gear transmission assembly. The spraying device (2) further includes at least one driven shaft (23) and a rotating disk (24) disposed between all the spray pipes (21) and all the driven shafts (23); the gear transmission assembly includes: A planetary gear set is provided between the driving shaft (22) and all the driven shafts (23); At least one set of bevel gears is provided between each of the spray pipes (21) and the rotating disk (24) and between each of the driven shafts (23) and the rotating disk (24).

2. The adsorption tower for carbon dioxide production according to claim 1, characterized in that, The spray device (2) further includes an inlet pipe (25) for supplying spray liquid and a pipe fitting assembly (26) connecting the inlet pipe (25) and all the spray pipes (21). The pipe fitting assembly (26) includes at least one horizontal pipe fitting (261) that is connected one-to-one with all the spray pipes (21). Each horizontal pipe fitting (261) is detachably connected to the connected spray pipe (21).

3. The adsorption tower for carbon dioxide production according to claim 2, characterized in that, One end of the inlet pipe (25) is integrally provided with an inlet connector (251). The pipe connector assembly (26) also includes a vertical pipe connector (264) rotatably sleeved outside the inlet pipe (25) and a sealing support (268) fixedly sleeved on the inlet connector (251). The sealing support (268) is fixedly provided with a sealing ring (2681). A rolling element (2682) for supporting the relative rotation of the two is provided between the sealing ring (2681) and the inner end face of the vertical pipe connector (264).

4. The adsorption tower for carbon dioxide production according to claim 2, characterized in that, The spray device (2) further includes an outer casing (29), which comprises: A protective cover (291) is provided over the drive shaft (22), all the driven shafts (23) and the rotating disk (24). A gear ring (292) is fixed at the opening at the bottom of the protective cover (291) and meshes with the planetary gear set. The upper pressure cap (293) and lower pressure cap (294) are respectively provided on the upper and lower sides of the spray pipe (21). Protective caps (295) are fixedly connected to the upper pressure cap (293) and the pipe joint assembly (26) respectively. The upper pressure cover (293) is fixedly connected to the protective cover (295), and the lower pressure cover (294) is rotatably connected to the protective cover (291).

5. The adsorption tower for carbon dioxide production according to any one of claims 1 to 4, characterized in that, It also includes a support plate (5) fixed inside the tower body (1), the support plate (5) including a mounting plate (51) for supporting the spray device (2) and a plurality of filling shells (52) arranged in a ring around the outer periphery of the mounting plate (51); each filling shell (52) includes a filling cavity, a mesh plate (53) fixed at the open ends of the filling cavity and a separation filler filling the filling cavity.

6. The adsorption tower for carbon dioxide production according to any one of claims 1 to 4, characterized in that, It also includes at least one layer of adsorption devices (6) fixed in the tower body (1) from top to bottom, and all the adsorption devices (6) are located above the spray device (2).

7. The adsorption tower for carbon dioxide production according to claim 6, characterized in that, Each layer of the adsorption device (6) includes a shaping ring (61) and two perforated plates (62) respectively fixed at both ends of the shaping ring (61). The shaping ring (61) and the two perforated plates (62) form a packing cavity, which is filled with adsorption packing (63).

8. The adsorption tower for carbon dioxide production according to claim 6, characterized in that, At least one set of positioning components (7) is provided between each layer of the adsorption device (6) and the inner wall of the tower body (1); the inner wall of the tower body (1) is provided with positioning holes (11); each set of positioning components (7) includes: Positioning block (71) closely attached to the edge of the positioning hole (11). A locking block (73) is engaged with a stop block (72) provided in the positioning hole (11) and fixed to the positioning block (71). A slidable insert (74) between the positioning block (71) and the positioning hole (11); The positioning rod (75) passes sequentially through the adsorption device (6), the positioning block (71), and the insertion block (74). A locking nut (76) is installed in the anti-rotation slot (711) of the positioning block (71) and cooperates with the positioning rod (75).

9. The adsorption tower for carbon dioxide production according to any one of claims 1 to 4, characterized in that, It also includes a liquid supply device (8) connected to the spray device (2), the liquid supply device (8) comprising: A liquid storage tank (81) is provided with a liquid replenishment port (811) and a liquid drain port (812). Several partition plates (83) are fixed to the liquid storage tank (81) and surround to form a purification chamber (82). A filter plate (84) fixedly installed in the liquid storage tank (81) and connected to the partition plate (83) for filtering the spray liquid flowing into the purification chamber (82). A liquid supply pipe (85) is connected between the spray device (2) and the purification chamber (82); A liquid supply pump (86) is provided on the liquid supply pipe (85).

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