Modularized carbon dioxide decarbonization tower

Abstract

The modularized carbon dioxide decarbonization tower comprises a waste gas treatment module and a feed liquid reduction module, and the waste gas treatment module is provided with a purified water spraying unit, a gas-liquid separation assembly and a feed liquid spraying unit which are installed at intervals from top to bottom; the purified water spraying unit is provided with a plurality of nozzles which are annularly arranged and spray purified water downwards; the gas-liquid separation assembly is provided with a baffling blade group consisting of a plurality of baffling blades which are sequentially arranged at equal intervals; the feed liquid spraying unit comprises a conical base, and a plurality of atomizing wheels capable of rotating are uniformly distributed around the inclined side surface of the conical base in the circumferential direction; and the feed liquid reduction module comprises a reaction tank group and a solid-liquid separator. The device has the efficient gas-liquid separation and drift-preventing capacity, the efficient atomization effect and the efficient spraying range, the decarburization tower is more convenient to mount, dismount and maintain due to the modular design, accurate matching and low-energy-consumption operation of the CO2 absorption liquid flow and the CO2 flow are achieved through intelligent information feedback, material liquid recycling is achieved, and the operation cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a modular carbon dioxide decarbonization tower for reducing carbon dioxide emissions from ships. Background Art

[0002] Carbon dioxide emissions are the main factor causing the greenhouse effect. Ships sailing on rivers and oceans emit a large amount of carbon dioxide during their voyage, so it is necessary to reduce greenhouse gas emissions from ships.

[0003] Decarbonization is a common method to reduce carbon dioxide emissions from ships. Existing ship decarbonization technologies, such as combustion optimization and clean fuel use, are effective, but have limited room for improvement and high cost of transformation. Carbon capture and storage (CCS) technology is a better solution, but it requires expensive equipment and regular replacement of absorption liquid, which increases operating costs.

[0004] In addition, traditional decarbonization tower equipment is large in size, inconvenient to install, and has environmental pollution and high cost issues. The existence of these problems limits the application of decarbonization technology on ships, especially on ships with limited space and cost sensitivity. Summary of the invention

[0005] The technical problem to be solved by the present invention is: In order to overcome the deficiencies in the prior art, the present invention provides a modular carbon dioxide decarbonization tower, which aims to recycle carbon dioxide (CO 2 ) absorption liquid, effectively controlling the ship's carbon dioxide emissions, achieving low energy consumption and modular design, and simplifying the installation and maintenance process.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a modular carbon dioxide decarbonization tower, including a waste gas treatment module and a liquid reduction module, and a connecting section is provided between the waste gas treatment module and the liquid reduction module.

[0007] Waste gas treatment module: includes a first-stage cylinder, in which a clean water spray unit, a gas-liquid separation component and a feed liquid spray unit are installed at intervals from top to bottom; the clean water spray unit has a plurality of nozzles arranged in a ring to spray clean water downward to clean solid impurities generated by the operation of the decarbonization tower; the gas-liquid separation component has a deflection blade group, and the deflection blade group is composed of a plurality of deflection blades arranged in sequence at equal intervals, and an air flow channel for air flow is formed between adjacent deflection blades; the feed liquid spray unit includes a conical base, and a plurality of rotatable fog wheels are evenly distributed around the oblique side surface of the conical base, and the fog wheel rotates around the conical base to shear and discharge the feed liquid evenly spread on the oblique side surface of the conical base to form fine droplets, and the droplets come into contact with the carbon-containing air to form turbid liquid that enters the feed liquid reduction module.

[0008] The feed liquid reduction module has a three-stage cylinder, in which a reaction tank group and a solid-liquid separator are installed; the reaction tank group includes a reaction tank for storing and stirring the turbid liquid dropped by the feed liquid spraying unit; the solid-liquid separator includes a solid-liquid separator shell, and the interior of the solid-liquid separator shell is divided into a sewage chamber and a clean water chamber, the sewage chamber is connected to the reaction tank pipeline, and a plurality of filter cartridges are arranged in the clean water chamber.

[0009] The connecting section comprises a second-order cylinder, the upper end of which is fixedly connected to the first-order cylinder, the lower end of which is fixedly connected to the third-order cylinder, and the side wall of which is connected to an air intake pipe for introducing carbon-containing air.

[0010] Specifically, the purified water spray unit includes an annular bracket fixed to the first-order cylinder, an annular water pipe is fixed inside the annular bracket, the spray head is fixed to the annular water pipe by a threaded connection, and the side of the annular water pipe is connected to a water inlet pipe passing through the first-order cylinder.

[0011] In order to better improve the gas-liquid separation effect, the gas-liquid separation component has an efficiency enhancement module, a box body and two upper and lower fairings. The inner ends of the fairings are respectively welded to the upper and lower ends of the box body, and the outer end side of the fairing is welded and fixedly connected to the first-order cylinder; the deflector blade group is fixed in the box body.

[0012] Specifically, the efficiency-enhancing module is installed on the deflection blade, and the efficiency-enhancing module includes an efficiency-enhancing cover plate, a micro-cyclone separator, a micro-air pump, an efficiency-enhancing exhaust channel cover plate, an efficiency-enhancing exhaust channel cover plate, an air pipe and a partition; the efficiency-enhancing cover plate is placed above one side of the bending protrusion of the deflection blade to form an internal channel with the bending area of ​​the deflection blade, and the partition plate is arranged in the middle of the efficiency-enhancing cover plate to divide the internal channel into an exhaust channel and an exhaust channel, and the efficiency-enhancing exhaust channel cover plate is connected to the wall of the box with an exhaust hole to form an exhaust channel; the efficiency-enhancing exhaust channel cover plate is connected to the wall of the box with an exhaust hole to form an exhaust channel; the micro-cyclone separator and the micro-air pump are installed on the outer wall of the box, and the efficiency-enhancing exhaust channel cover plate, the efficiency-enhancing exhaust channel cover plate, the micro-cyclone separator and the micro-air pump are connected in series through the air pipe.

[0013] Specifically, the liquid spray unit includes: a support frame fixed to the inner wall of the first-stage cylinder, a rotatable arm support seat is provided below the support frame, a conical base is located below the arm support seat, the conical base is fixed to the support frame through a hollow steel pipe, the arm support seat and the hollow steel pipe are gap-matched, an infusion tube for conveying CO2 absorption liquid is inserted into the upper port of the hollow steel pipe, a plurality of water outlets are provided on the side wall of the bottom end of the hollow steel pipe, arms are evenly fixed on the arm support seat in a circumferential direction, and the outer end of the arm is connected to the fog wheel through a connecting rod.

[0014] Furthermore, a liquid spraying motor is fixed on the support frame, a large gear is fixed on the motor shaft of the liquid spraying motor, a small gear meshing with the large gear is provided in the middle of the hollow steel pipe through a bearing, the bottom end of the small gear is fixed to the upper end surface of the arm support seat through a sleeve, and a spring is connected to the connection between the arm and the connecting rod. Through the action of the spring, the fog wheel is ensured to fit tightly to the side of the conical base, ensuring that the fog wheel has sufficient downward pressure and friction.

[0015] Specifically, the reaction tank group has a fixed plate, an annular bracket and a reducing agent supply pipeline. The fixed plate and the annular bracket are respectively arranged at the upper and lower ends of the reaction tank and are welded and fixed to the three-stage cylinder. A motor is installed on the fixed plate, and a stirring blade that penetrates into the reaction tank is installed at the end of the motor shaft. The reducing agent supply pipeline is fixed on the side of the three-stage cylinder and its inner end extends to the interior of the reaction tank.

[0016] Furthermore, the interior of the solid-liquid separator shell is divided into a sewage chamber and a clean water chamber by an isolation plate, and a plurality of holes connected to the filter cartridge are provided on the isolation plate; the lower pipeline of the sewage chamber is connected to a sewage valve that discharges filtered impurities out of the system, the upper pipeline of the clean water chamber is connected to a clean water chamber replenishing valve that can replenish clean water, the lower pipeline of the clean water chamber is connected to a water pump, and the water pump pipeline is connected to a circulating water valve arranged on the outside of the three-stage cylinder.

[0017] In order to ensure the supply of clean water during the separation process and the flow of feed liquid between each processing module, the decarbonization tower also has a water supply system, which includes a clean water supply water circuit and a feed liquid circulation water circuit. The clean water supply water circuit provides the required clean water for the clean water chamber, reaction tank and clean water spray unit of the solid-liquid separator; the feed liquid circulation water circuit is used to realize the transmission of feed liquid between the waste gas treatment module and the feed liquid reduction module.

[0018] Furthermore, in order to realize real-time monitoring of gas flow, CO2 concentration and liquid flow during the separation process, a feedback control system is installed on the outer wall of the three-stage cylinder, and the feedback control system includes a central controller, a gas flow meter, a CO2 concentration sensor and a liquid flow meter. The gas flow meter and the CO2 concentration sensor are connected to the air intake pipe to monitor the gas flow and CO2 concentration in the air intake pipe in real time; the liquid flow meter is installed in the feed liquid circulation water circuit to monitor the liquid flow.

[0019] The beneficial effects of the present invention are:

[0020] 1. Efficient gas-liquid separation and anti-floating ability: The efficiency enhancement module works synergistically with the baffle blades. The rounded corner design of the baffle blades reduces the airflow resistance. The efficiency enhancement module ensures that the slurry is completely separated, enhancing the anti-floating ability of the decarbonization tower.

[0021] 2. Efficient atomization effect and spray range: The design advantage of the liquid spray unit lies in its micro grooves and rotating fog wheel, which not only improves the atomization effect and spray range, but also greatly increases the gas-liquid contact area by producing fine droplets, thereby significantly improving the absorption efficiency of carbon dioxide. The structure is simple and not easy to clog, ensuring the long-term stable operation of the decarbonization tower. It does not require high-pressure air pumps and high-pressure water pumps. The design also reduces the energy consumption of the system, making the entire decarbonization process more efficient and environmentally friendly.

[0022] 3. Modular and portable design: The decarbonization tower adopts a modular design, and each module is connected by a tower buckle. This design makes the installation, disassembly and maintenance of the decarbonization tower quick and easy; the modular design also allows the decarbonization tower to be flexibly configured according to different application requirements, improving the adaptability and scalability of the equipment. In addition, the portable design allows the decarbonization tower to be easily transferred and deployed between different ships or industrial sites, providing convenience for mobile operations.

[0023] 4. Intelligent feedback control system: The decarbonization tower is equipped with an intelligent feedback control system, which monitors the gas flow and CO2 concentration in the air intake pipeline and the liquid flow in the liquid circulation water circuit in real time through the central controller, gas flow meter, CO2 concentration sensor and liquid flow meter. When the CO2 concentration changes, the sensor will transmit the signal to the central controller, and the controller will then intelligently adjust the speed of the relevant valves and liquid spray motor to achieve accurate matching of the CO2 absorption liquid flow and the CO2 flow. This intelligent control not only ensures a high CO2 removal rate, but also reduces energy consumption, making the operation of the decarbonization tower more flexible and responsive, while also reducing errors in human operation and improving the stability and reliability of the system.

[0024] 5. Low-energy operation: The liquid feed can be recycled and reused, which reduces operating costs and the generation of chemical waste. The liquid feed spray system is resistant to blockage and can generate mist without high-pressure air pumps and water pumps, thus reducing energy consumption. The optimized airflow dynamics design, low wind resistance treatment of the entire tower, and high efficiency and low consumption of the gas-liquid separator are adopted. The feedback control system can adjust the liquid feed supply according to the operating conditions, achieve accurate matching of the CO2 absorption liquid flow rate with the CO2 flow rate, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the present invention.

[0028] Figure 3It is a structural schematic diagram of the water purification spray unit of the present invention.

[0029] Figure 4 It is a schematic diagram of the structure of the gas-liquid separation component of the present invention. Principle diagram, cross-sectional diagram,

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the deflector blade group of the present invention.

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the deflector blade group described in the present invention.

[0032] Figure 7 It is an enlarged structural schematic diagram of the baffle blade group described in the present invention where the efficiency-enhancing cover plate is installed.

[0033] Figure 8 It is a structural schematic diagram of the liquid spraying unit of the present invention.

[0034] Fig. 9 It is a working principle diagram of the solid-liquid separator when the present invention is in operation.

[0035] Fig.10 It is a working principle diagram of the solid-liquid separator during maintenance of the present invention.

[0036] Fig.11 It is a schematic diagram of the decarburization process of the present invention.

[0037] In the figure: 1. Waste gas treatment module; 2. Connection section; 3. Liquid reduction module; 4. Water supply system; 5. Feedback control system; 6. Tower buckle;

[0038] 1001. water purification spray unit; 1001-1. spray head; 1001-2. annular water pipe; 1001-3. water inlet pipe; 1001-4. annular bracket; 1001-5. fixing plate; 1001-6. flange;

[0039] 1002. gas-liquid separation component; 1002-1. baffle blade group; 1002-1-1. baffle blade; 1002-2. efficiency enhancement module; 1002-2-1. efficiency enhancement cover plate; 1002-2-2. micro cyclone separator; 1002-2-3. micro air pump; 1002-2-4. efficiency enhancement exhaust channel cover plate; 1002-2-5. efficiency enhancement exhaust channel cover plate; 1002-2-6. air pipe; 1002-2-7. partition plate; 1002-3. box body; 1002-4. fairing;

[0040] 1003. Liquid spray unit; 1003-1. Liquid spray motor; 1003-2. Support frame; 1003-3. Large gear; 1003-4. Small gear; 1003-5. Hollow steel pipe; 1003-6. Infusion pipe; 1003-7. Conical base; 1003-8. Arm; 1003-9. Arm support seat; 1003-10. Connecting rod; 1003-11. Spring; 1003-12. Mist wheel; 1003-13. Bearing;

[0041] 1004, first-stage cylinder, 1005. rain cover;

[0042] 2001. Second-stage cylinder; 2002. Air intake pipe; 2003. CO2 concentration sensor; 2004. Gas flow meter;

[0043] 3001. reaction tank group; 3001-1. reaction tank; 3001-2. stirring blade; 3001-3. motor; 3001-4. fixing plate; 3001-5. annular bracket; 3001-6. reducing agent supply pipeline;

[0044] 3002. solid-liquid separator; 3002-1. filter cartridge; 3002-2. solid-liquid separator housing; 3002-3. isolation plate; 3002-4. water pipe;

[0045] 3003. Water pump; 3004. Valve; 3004-1. Reaction tank refill valve; 3004-2. Turbid liquid inlet valve; 3004-5. Drain valve; 3004-6. Clean water chamber refill valve; 3004-7. Circulating water valve; 3005. Three-stage cylinder; 3006. Base;

[0046] 4001. Main valve; 4002. Branch valve of clean water spray unit; 5001. Central controller; 5002. Liquid flow meter. DETAILED DESCRIPTION

[0047] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0048] like Figure 1 , Figure 2 A modular carbon dioxide decarbonization tower is shown, and the tower body of the decarbonization tower includes a first-order cylinder 1004, a second-order cylinder 2001 and a third-order cylinder 3005. The bottom of the first-order cylinder 1004 and the top of the second-order cylinder 2001, as well as the bottom of the second-order cylinder 2001 and the top of the third-order cylinder 3005 are fixed by tower buckles 6, which are convenient for quick installation and disassembly. A rain cover 1005 is installed on the top of the first-order cylinder 1004, and a base 3006 is welded and fixed to the lower end of the third-order cylinder 3005.

[0049] The decarbonization tower is divided into three parts from top to bottom: a waste gas treatment module 1, a connecting section 2 and a liquid reduction module 3; and is also equipped with two systems: a water supply system 4 and a feedback control system 5.

[0050] The detailed structure of the waste gas treatment module 1 is as follows: it includes a clean water spray unit 1001 , a gas-liquid separation component 1002 and a liquid spray unit 1003 , and the component units are arranged at a certain interval from top to bottom and are welded and fixed to the first-order cylinder 1004 .

[0051] like Figure 3 As shown, the water purification spray unit 1001 specifically includes: a plurality of nozzles 1001-1, an annular water pipe 1001-2, a water inlet pipe 1001-3, an annular bracket 1001-4 and a fixing plate 1001-5. The fixing plate 1001-5 is provided with a circular hole, which is welded to the annular water pipe 1001-2. The lower end surface of the annular water pipe 1001-2 is provided with a threaded opening. The nozzle 1001-1 is fixed to the annular water pipe 1001-2 by threaded connection. The side end of the fixing plate 1001-5 is welded to the annular bracket 1001-4. The side of the annular water pipe 1001-2 is provided with a hole, which is welded to the water inlet pipe 1001-3. The water inlet pipe 1001-3 passes through the annular bracket 1001-4 and the first-stage cylinder 1004 from the inside to the outside in sequence. The outermost end of the water inlet pipe 1001-3 is fixed with a flange 1001-6 by welding.

[0052] like Figures 4 to 7 As shown, the gas-liquid separation component 1002 includes a deflector blade group 1002-1, an efficiency enhancement module 1002-2, a box body 1002-3, and two upper and lower fairings 1002-4. The inner ends of the two fairings 1002-4 are respectively welded to the upper and lower ends of the box body 1002-3, and the outer end side of the fairing 10024 is welded and fixedly connected to the first-order cylinder 1004. The deflector blade group 1002-1 is welded inside the box body 1002-3, and the deflector blade group 1002-1 is composed of a plurality of deflector blades 1002-1-1 arranged in sequence at equal intervals, and an airflow channel for air flow is formed between adjacent deflector blades. In the present invention, the deflector blade 1002-1-1 is designed as a "Z" type structure, and its bending part is subjected to rounded low-resistance treatment to reduce airflow resistance.

[0053] The efficiency enhancement module 1002-2 is installed on the baffle blade 1002-1-1, and includes an efficiency enhancement cover plate 1002-2-1, a micro cyclone separator 1002-2-2, a micro air pump 1002-2-3, an efficiency enhancement air extraction channel cover plate 1002-2-4, an efficiency enhancement air outlet channel cover plate 1002-2-5, an air pipe 1002-2-6 and a partition plate 1002-2-7. The efficiency enhancement cover plate 1002-2-1 is installed above one side of the bending protrusion of the baffle blade 1002-1-1 through a threaded connection, and its two sides are circularly cut and transitioned with the baffle blade 1002-1-1, and the inner wall surface of the efficiency enhancement cover plate 1002-2-1 and the bending area of ​​the baffle blade 1002-1-1 form an internal channel. Four rows of small holes with a diameter less than 1 mm are provided on the efficiency-enhancing cover 1002-2-1 along the airflow direction; the partition 1002-2-7 is arranged in the middle of the efficiency-enhancing cover 1002-2-1 and connected to the deflector blade 1002-1-1, dividing the internal channel into an exhaust channel and an exhaust channel, and the four rows of small holes are divided into exhaust holes (windward side of the deflector blade 1002-1-1) and exhaust holes (leeward side of the deflector blade 1002-1-1), and a through hole is provided at one end where the exhaust channel and the exhaust channel are connected to the box body 1002-3, and the through holes are correspondingly divided into exhaust through holes and exhaust through holes. The cover plate 1002-2-4 for the enhanced air extraction channel is threadedly connected and covered on the wall of the box 1002-3 with the air extraction holes to form an air extraction channel; the cover plate 1002-2-5 for the enhanced air outlet channel is also threadedly connected and covered on the wall of the box 1002-3 with the air outlet holes to form an air outlet channel. One end of the cover plate 1002-2-4 for the enhanced air extraction channel and the cover plate 1002-2-5 for the enhanced air outlet channel is provided with a small hole, and is connected in series with the micro cyclone separator 1002-2-2 and the micro air pump 1002-2-3 through an air pipe.

[0054] When the equipment is running, the micro air pump 1002-2-3 is turned on, and the original flow field is effectively destroyed through the cycle of air extraction and air discharge, thereby strengthening the collision tendency of the droplets with the wall of the baffle blade 1002-1-1. The air extraction effect not only drives the liquid attached to the baffle blade 1002-1-1, but also reduces the thickness of the liquid film, avoids the liquid film from breaking due to shear force, and prevents the droplets from re-entering the flow field. At the same time, the airflow released by the air outlet further pushes the liquid-containing airflow close to the wall of the baffle blade 1002-1-1, making it easier for the droplets to collide with the surface of the baffle blade 1002-1-1, thereby improving the separation efficiency of the droplets. This process not only significantly improves the efficiency of gas-liquid separation, but also effectively reduces the drift phenomenon of the droplets, thereby ensuring the efficient and stable operation of the decarbonization tower.

[0055] In this process, due to the suction effect, a small amount of droplets will inevitably be carried in the airflow. In order to prevent these droplets from being brought into the downstream area, the airflow is precisely filtered through the micro cyclone separator 1002-2-2 to ensure that the droplets are effectively separated and removed from the airflow to prevent them from being brought into the downstream area.

[0056] The liquid spray unit 1003 has similar functions to the water purification spray unit 1001, but is different in design. The liquid spray unit 1003 is specially designed to circulate the CO2 absorption liquid containing solid impurities, so it cannot directly adopt the structure of the water purification spray unit 1001.

[0057] like Figure 8 As shown, the liquid spray unit 1003 includes the following components: liquid spray motor 1003-1, support frame 1003-2, large gear 1003-3, small gear 1003-4, hollow steel pipe 1003-5, liquid infusion tube 1003-6, conical base 1003-7, arm 1003-8, arm support seat 1003-9, connecting rod 1003-10, spring 1003-11, fog wheel 1003-12, bearing 1003-13. The two ends of the support frame 1003-2 are respectively fixed to the inner wall of the first-stage cylinder 1004, the liquid spray motor 1003-1 is fixed on the support frame 1003-2, and the shaft end thereof cooperates with the large gear 1003-3 to drive the entire liquid spray unit 1003. The top of the hollow steel pipe 1003-5 is fixed on the support frame 1003-2, and the infusion pipe 1003-6 is inserted into the hollow steel pipe 1003-5 to transport the CO2 absorption liquid. The small gear 1003-4 is installed in the middle of the hollow steel pipe 1003-5 through the bearing 1003-13, and meshes with the large gear 1003-3 to achieve power transmission. The bottom of the hollow steel pipe 1003-5 is connected to the top of the conical base 1003-7, and multiple water outlets are provided on the side of the bottom end of the hollow steel pipe 1003-5 to achieve liquid supply. The sides of the conical base 1003-7 have a certain slope to facilitate liquid coverage. The arm support seat 1003-9 is welded and fixed to the bottom end of the pinion 1003-4 through a sleeve, which is used to fix the arm 1003-8; the inner end of the arm 1003-8 is welded and fixed to the arm support seat 1003-9, the outer end of the arm 1003-8 is fixed to the upper end of the connecting rod 1003-10, and the lower end of the connecting rod 1003-10 is connected to the fog wheel 1003-12. The six fog wheels 1003-12 are evenly distributed along the circumference of the conical base 1003-7, and the fog wheels 1003-12 can rotate around their own axes. The spring 1003-11 is placed at the connection between the arm 1003-8 and the connecting rod 1003-10, and is hung at their respective hanging points to ensure that the fog wheel 1003-12 is tightly fitted to the side of the conical base 1003-7 to ensure sufficient downward pressure and friction.

[0058] Micro grooves are carefully designed on the side of the fog wheel 1003-12. These micro grooves cleverly construct a fog channel between the fog wheel 1003-12 and the conical base 1003-7, so that the liquid can be effectively guided, sheared and discharged. As the fog wheel 1003-12 rotates, the centrifugal force and forward momentum generated work together to push the liquid to be discharged outward along the micro grooves. During the operation of the equipment, the precise matching of the fog wheel 1003-12 and the micro grooves exerts pressure on the liquid accumulation layer on the conical base 1003-7, thereby generating dynamic pressure in the liquid. This dynamic pressure is proportional to the square of the rotation speed of the fog wheel 1003-12, which means that an increase in the rotation speed will significantly increase the dynamic pressure, thereby promoting the shearing and discharge of the liquid, and the droplets will be smaller. This process not only achieves an efficient atomization effect, but also improves the spraying efficiency and effectively prevents the occurrence of blockage.

[0059] When the decarbonization tower equipment is running, the liquid spraying motor 1003-1 starts, driving the large gear 1003-3 to rotate, and then driving the small gear 1003-4 meshing with it. The rotation of the small gear 1003-4 drives the arm 1003-8 to rotate accordingly. This continuous power transmission eventually causes the connecting rod 1003-10 and the fog wheel 1003-12 to rotate synchronously. In this process, the spring 1003-11 plays a key role. The tension it provides effectively offsets the friction between the fog wheel 1003-12 and the conical base 1003-7 caused by centrifugal force, ensuring the smooth operation of the system. At the same time, the infusion pipe 1003-6 continuously transports CO2 absorption liquid, which flows out from the small side holes at the bottom of the hollow steel pipe 1003-5 and spreads evenly on the side of the conical base 1003-7. Under the dual effects of the downward pressure and friction of the fog wheel 1003-12, the CO2 absorption liquid is sheared and discharged through the micro grooves to form fine droplets.

[0060] like Figure 1 , Figure 2 As shown, the connection section 2 includes a second-stage cylinder 2001, an air intake pipe 2002, a CO2 concentration sensor 2003 and a gas flow meter 2004. The side of the second-stage cylinder 2001 is welded and fixed to the air intake pipe 2002. In order to reduce the air flow resistance, the connection is rounded to optimize the air flow dynamics. The CO2 concentration sensor 2003 and the gas flow meter 2004 are installed in series on the air intake pipe 2002 to ensure accurate monitoring and feedback control of the CO2 absorption liquid supply.

[0061] like Figure 2 , Fig.11As shown, the liquid reduction module 3 is composed of a reaction tank group 3001, a solid-liquid separator 3002, a water pump 3003 and a valve 3004. The valve 3004 includes a reaction tank liquid replenishing valve 3004-1, a turbid liquid inlet valve 3004-2, a sewage valve 3004-5, a clean water chamber liquid replenishing valve 3004-6 and a circulating water valve 3004-7.

[0062] The reaction tank group 3001 comprises a reaction tank 3001-1, a stirring blade 3001-2, a motor 3001-3, a fixed plate 3001-4, an annular bracket 3001-5 and a reducing agent supply pipeline 3001-6. The reaction tank 3001-1 is made of corrosion-resistant materials, and the upper and lower ends are respectively installed with a fixed plate 3001-4 and an annular bracket 3001-5, and are welded and fixed with the inner wall of the three-stage cylinder 3005. The motor 3001-3 is installed on the fixed plate 3001-4, and the stirring blade 3001-2 is installed at its shaft end, and the stirring blade 3001-2 goes deep into the reaction tank 3001-1. The side of the three-stage cylinder 3005 is provided with a small hole, which is welded and connected with the reducing agent supply pipeline 3001-6. The outer end of the reducing agent supply pipeline 3001-6 is equipped with a leakproof cover, and the inner end extends to the inside of the reaction tank to ensure the supply of the reducing agent. Two small holes are provided on the side of the reaction tank 3001-1, which are connected to water pipes 3002-4 respectively. One water pipe 3002-4 extends out of the three-stage cylinder 3005 and is connected to the reaction tank liquid replenishment valve 3004-1 for replenishing clean water. The other water pipe 3002-4 is connected to the solid-liquid separator 3002 for treating the turbid liquid after the reaction in the reaction tank 3001-1, and a turbid liquid inlet valve 3004-2 is installed in the middle.

[0063] like Fig. 9 , Fig.10As shown, the solid-liquid separator 3002 is composed of a plurality of filter cartridges 3002-1 and a solid-liquid separator housing 3002-2. The interior of the solid-liquid separator housing 3002-2 is divided into two chambers by a partition plate 3002-3: a sewage chamber and a clean water chamber. The partition plate 3002-3 is provided with a plurality of holes, which are closely connected to the filter cartridges 3002-1. The upper part of the sewage chamber is provided with a small hole, which is connected to the reaction tank 3001-1 through a water pipe 3002-4 (equipped with a turbid liquid inlet valve 3004-2) so as to introduce sewage containing impurities into the solid-liquid separator 3002. The lower part of the sewage chamber is also provided with a small hole, which is connected to the sewage discharge valve 3004-5 through a water pipe 3002-4, so as to discharge the filtered impurities out of the system. A small hole is also provided at the top of the clean water chamber, which is connected to the clean water chamber replenishment valve 3004-6 outside the three-stage cylinder 3005 through a water pipe 3002-4, so as to replenish clean water when needed. A small hole is provided at the bottom of the clean water chamber, which is connected to the water pump 3003 through a water pipe 3002-4, and the other end of the water pump 3003 is connected to the circulating water valve 3004-7 outside the three-stage cylinder 3005 through a water pipe 3002-4.

[0064] like Figure 1 , Figure 2 As shown, the water supply system 4 mainly includes a clean water supply circuit and a liquid circulation water circuit. The water pipe 3002-4 is connected to the power water source. In addition to the main valve 4001, each branch water pipe 3002-4 is connected to the clean water chamber replenishment valve 3004-6, the reaction tank replenishment valve 3004-1 and the clean water spray unit branch valve 4002, respectively, to provide necessary clean water for the clean water chamber of the solid-liquid separator 3002, the reaction tank 3001-1 and the clean water spray unit 1001.

[0065] When the equipment is in normal operation, the main valve 4001, the circulating water valve 3004-7, the reaction tank refill valve 3004-1 and the turbid liquid inlet valve 3004-2 need to be opened; while the clean water chamber refill valve 3004-6, the clean water spray unit branch valve 4002 and the sewage valve 3004-5 remain closed. When the water level of the reaction tank 3005 exceeds the preset value, the reaction tank refill valve 3004-1 will automatically close, otherwise it will open. Among them, the choice of the reaction tank refill valve 3004-1 is not limited to the type used in the present invention, and also includes a float valve, a pressure valve, etc. Any device that can automatically control the valve switch according to the water level change can be applied. When the equipment needs maintenance, open the clean water spray unit branch valve 4002 and the clean water chamber replenishment valve 3004-6, and open the sewage valve 3004-5 at the same time; at this time, it is necessary to close the water pump 3003, the circulating water valve 3004-7 and the turbid liquid inlet valve 3004-2.

[0066] The feedback control system 5 is composed of a central controller 5001, a gas flow meter 2004, a CO2 concentration sensor 2003 and a liquid flow meter 5002. The gas flow meter 2004 and the CO2 concentration sensor 2003 are responsible for real-time monitoring of the gas flow and CO2 concentration in the intake pipe 2003, and the liquid flow meter 5002 is installed in the liquid circulation water circuit to monitor the liquid flow. When an increase in CO2 concentration is detected, the CO2 concentration sensor 2003 and the gas flow meter 2004 transmit signals to the central controller 5001. The central controller 5001 intelligently adjusts the relevant valves according to the received data, adjusts the liquid flow and the speed of the liquid spraying motor 1003-1, and realizes the precise matching of the CO2 absorption liquid flow and the CO2 flow, thereby optimizing the CO2 absorption efficiency and reducing energy consumption.

[0067] like Fig.11 As shown, for the carbon-containing flue gas concentration of 200 mg / m 3 To ensure the reaction is sufficient, including decarbonization reaction and reduction reaction, increase the ideal dosage. When the equipment is turned on for the first time, 7.5 kg of CO2 absorption liquid (NaOH) should be added (increase by 10%), Ca(OH) 2 8kg of reducing agent (upward by 20%) can remove about 5.5m3 per day 3 CO2, generating 10kg of CaCO 3 , water pump flow rate 0.42kg / s. Stop to descale; add 0.5kg (7% of the first day) of CO2 absorption liquid (NaOH) and Ca(OH) 2 8kg of reducing agent, going down in sequence.

[0068] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A modular carbon dioxide decarbonization tower, characterized by: It comprises a waste gas treatment module (1) and a liquid feed reduction module (3), wherein a connecting section (2) is provided between the waste gas treatment module (1) and the liquid feed reduction module (3); The waste gas treatment module (1) comprises a first-stage cylinder (1004), in which a water purification spray unit (1001), a gas-liquid separation component (1002) and a liquid spray unit (1003) are installed at intervals from top to bottom; The clean water spray unit (1001) comprises a plurality of spray heads (1001-1) arranged in a ring shape and spraying clean water downward to clean solid impurities generated by the operation of the decarbonization tower; The gas-liquid separation component (1002) has a baffle blade group (1002-1), wherein the baffle blade group (1002-1) is composed of a plurality of baffle blades (1002-1-1) arranged in sequence at equal intervals, and an air flow channel for air flow is formed between adjacent baffle blades (1002-1-1); The liquid spraying unit (1003) comprises a conical base (1003-8), and a plurality of rotatable fog wheels (1003-12) are evenly distributed around the oblique side surface of the conical base (1003-8). The fog wheels (1003-12) rotate around the conical base (1003-8) to shear and discharge the liquid evenly spread on the oblique side surface of the conical base (1003-8) to form fine droplets. The droplets contact with carbon-containing air to form turbid liquid that enters the liquid reduction module (3); The liquid reduction module (3) has a three-stage cylinder (3005), in which a reaction tank group (3001) and a solid-liquid separator (3002) are installed. The reaction tank group (3001) comprises a reaction tank (3001-1) for storing and stirring the turbid liquid dropped by the liquid spraying unit (1003); The solid-liquid separator (3002) comprises a solid-liquid separator shell (3002-2), the interior of the solid-liquid separator shell (3002-2) being divided into a sewage chamber and a clean water chamber, the sewage chamber being connected to the reaction tank (3001-1) by a pipeline, and a plurality of filter cartridges (3002-1) being arranged in the clean water chamber; The connecting section (2) comprises a second-order cylinder (2001), the upper end of the second-order cylinder (2001) is fixedly connected to the first-order cylinder (1004), the lower end of the second-order cylinder (2001) is fixedly connected to the third-order cylinder (3005), and the side wall of the second-order cylinder (2001) is connected to an air intake pipe (2002) for introducing carbon-containing air.

2. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The water purification spray unit (1001) comprises an annular bracket (1001-4) fixed to a first-stage cylinder (1004), an annular water pipe (1001-2) being fixedly connected inside the annular bracket (1001-4), the spray head (1001-1) being fixed to the annular water pipe (1001-2) by means of a threaded connection, and a water inlet pipe (1001-3) passing through the first-stage cylinder (1004) is connected to the side of the annular water pipe (1001-2).

3. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The gas-liquid separation component (1002) comprises an efficiency enhancement module (1002-2), a casing (1002-3) and two upper and lower fairings (1002-4); the inner ends of the fairings (1002-4) are respectively welded to the upper and lower ends of the casing (1002-3); the outer end side surfaces of the fairings (1002-4) are welded and fixedly connected to the first-stage cylinder (1004); the deflector blade group (1002-1) is fixed in the casing (1002-3).

4. The modular carbon dioxide decarbonization tower according to claim 3, characterized in that: The efficiency enhancement module (1002-2) is installed on the deflecting blade (1002-1-1), and the efficiency enhancement module (1002-2) includes an efficiency enhancement cover plate (1002-2-1), a micro cyclone separator (1002-2-2), a micro air pump (1002-2-3), an efficiency enhancement air extraction channel cover plate (1002-2-4), an efficiency enhancement air outlet channel cover plate (1002-2-5), an air pipe (1002-2-6) and a partition plate (1002-2-7); the efficiency enhancement cover plate (1002-2-10) is placed above one side of the bending protrusion of the deflecting blade (1002-1-1) to form an internal channel with the bending area of ​​the deflecting blade (1002-1-1), and the partition plate (1002-2-7) is arranged on the efficiency enhancement cover plate (1002-2-10). 02-2-1) in the middle, the internal channel is divided into an exhaust channel and an exhaust channel, the efficiency-enhancing exhaust channel cover plate (1002-2-4) is connected to the wall of the box (1002-3) with an exhaust hole to form an exhaust channel; the efficiency-enhancing exhaust channel cover plate (1002-2-5) is connected to the wall of the box (1002-3) with an exhaust hole to form an exhaust channel; the micro cyclone separator (1002-2-2) and the micro air pump (1002-2-3) are installed on the outer wall of the box (1002-3), and the efficiency-enhancing exhaust channel cover plate (1002-2-4), the efficiency-enhancing exhaust channel cover plate (1002-2-5) and the micro cyclone separator (1002-2-2) and the micro air pump (1002-2-3) are connected in series through air pipes.

5. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The liquid spraying unit (1003) comprises: a support frame (1003-2) fixed to the inner wall of the first-stage cylinder (1004); a rotatable arm support seat (1003-9) is provided below the support frame (1003-2); a conical base (1003-7) is located below the arm support seat (1003-9); the conical base (1003-7) is fixed to the support frame (1003-2) through a hollow steel pipe (1003-5); and the arm support seat (1003-9) is provided below the conical base (1003-7). 03-9) is gap-matched with the hollow steel pipe (1003-5), the upper end of the hollow steel pipe (1003-5) is extended with a liquid infusion pipe (1003-6) for conveying CO2 absorption liquid, a plurality of water outlets are arranged on the side wall at the bottom end of the hollow steel pipe (1003-5), the arm support seat (1003-9) is evenly fixed with arms (1003-8) in the circumferential direction, and the outer end of the arm (1003-8) is connected to the fog wheel (1003-12) through a connecting rod (1003-10).

6. The modular carbon dioxide decarbonization tower according to claim 5, characterized in that: A liquid spraying motor (1003-1) is fixed on the support frame (1003-2), a large gear (1003-3) is fixed on the motor shaft of the liquid spraying motor (1003-1), a small gear (1003-4) meshing with the large gear (1003-3) is rotatably provided in the middle of the hollow steel pipe (1003-5) through a bearing (1003-13), the bottom end of the small gear (1003-4) is fixed to the upper end surface of the arm support seat (1003-9) through a sleeve, and a spring (1003-11) is connected to the connection between the arm (1003-8) and the connecting rod (1003-10).

7. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The reaction tank group (3001) comprises a fixed plate (3001-4), an annular bracket (3001-5) and a reducing agent supply pipeline (3001-6); the fixed plate (3001-4) and the annular bracket (3001-5) are respectively arranged at the upper and lower ends of the reaction tank (3001-1) and are welded and fixed to the three-stage cylinder (3005); a motor (3001-3) is installed on the fixed plate (3001-4); a stirring blade (3001-2) which penetrates into the reaction tank (3001-1) is installed at the shaft end of the motor (3001-3); and the reducing agent supply pipeline (3001-6) is fixed on the side of the three-stage cylinder (3005) and its inner end extends into the reaction tank (3001-1).

8. The modular carbon dioxide decarbonization tower according to claim 7, characterized in that: The interior of the solid-liquid separator shell (3002-2) is divided into a sewage chamber and a clean water chamber by an isolation plate (3002-3), and a plurality of holes connected to the filter cartridge (3002-1) are provided on the isolation plate (3002-3); the lower pipeline of the sewage chamber is connected to a (sewage discharge valve 3004-5) for discharging filtered impurities from the system, the upper pipeline of the clean water chamber is connected to a clean water chamber replenishing valve (3004-6) for replenishing clean water, the lower pipeline of the clean water chamber is connected to a water pump (3003), and the water pump (30030 pipeline is connected to a circulating water valve (3004-7) arranged outside the three-stage cylinder (3005).

9. The modular carbon dioxide decarbonization tower according to claim 1, characterized in that: The decarbonization tower also has a water supply system (4), which includes a clean water supply water circuit and a feed liquid circulation water circuit. The clean water supply water circuit provides the required clean water for the clean water chamber of the solid-liquid separator (3002), the reaction tank (3001-1) and the clean water spray unit (1001); the feed liquid circulation water circuit is used to realize the transmission of feed liquid between the waste gas treatment module (1) and the feed liquid reduction module (3).

10. The modular carbon dioxide decarbonization tower according to claim 9, characterized in that: A feedback control system (5) is installed on the outer wall of the three-stage cylinder (3005), and the feedback control system (5) includes a central controller (5001), a gas flow meter (2004), a CO2 concentration sensor (2003) and a liquid flow meter (5002). The gas flow meter (2004) and the CO2 concentration sensor (2003) are connected to the air intake pipeline (2002) to monitor the gas flow and CO2 concentration in the air intake pipeline (2003) in real time; the liquid flow meter (5002) is installed in the liquid circulation water circuit to monitor the liquid flow.

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