Intelligent CO2 chemical absorption trapping method and device

Abstract

The invention discloses an intelligent CO2 chemical absorption and capture method and device, and relates to the technical field of carbon dioxide chemical absorption and capture, the device comprises an absorption tower mechanism, the absorption tower mechanism comprises a tower body, and a first conveying pipe fixedly communicates with the position, close to the top end, of the outer surface of the tower body; a second conveying pipe is fixedly communicated with the outer surface, close to the bottom end, of the tower body; according to the intelligent CO2 chemical absorption and trapping device, a multi-stage electric push rod is controlled by a controller to contract, at the moment, an adsorption magnet and a connecting magnet are magnetically connected, a fixed spring is in an initial state of contraction, and when a blockage condition is detected in a third conveying pipe, the multi-stage electric push rod is started, so that the third conveying pipe is blocked; and a multi-stage electric push rod drives an adsorption magnet to drive a connecting magnet, a fixing rod and a push plate to pull, suction force is generated during slow pulling, blockages at the bent part of the third conveying pipe can be sucked, and therefore the blockages are loosened.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide chemical absorption capture, and in particular to an intelligent CO2 chemical absorption capture method and device. Background Art

[0002] Carbon dioxide chemical absorption capture is a technology used to separate and capture carbon dioxide from mixed gases such as industrial waste gas and power plant flue gas. It mainly utilizes the chemical reaction between carbon dioxide and specific chemical absorbents to fix carbon dioxide from the air flow, and then releases carbon dioxide from the absorbent through certain methods, thereby achieving the purpose of capturing carbon dioxide.

[0003] In the prior art, for example, in Chinese patent number: CN219502411U, an interstage cooling device for chemical absorption carbon capture is disclosed. The interstage cooling device for chemical absorption carbon capture is provided with a cooling barrel, and the cooling water in the cooling barrel absorbs the heat in the absorption barrel, thereby reducing the temperature in the absorption barrel, thereby increasing the reaction rate of the organic amine and carbon dioxide. The exhaust gas is filtered by the first semi-ring filter and the second semi-ring filter to prevent impurities from entering the device. The exhaust gas and the organic amine are better contacted and reacted by the setting of the annular frame. The organic amine is stirred by the setting of the first stirring frame to make the exhaust gas and the organic amine better contact and react; the organic amine in the absorption barrel is circulated and cooled by the setting of the circulating cooling mechanism, thereby cooling the organic amine in the absorption barrel; the volatilization of the organic amine and the solvent is intercepted by cooling and liquefaction by the setting of the condensing mechanism, thereby further preventing the escape of the amine and the emission of pollutants.

[0004] However, in the prior art, in many cases, the operation of the device still requires a lot of manual intervention. When a pipe blockage occurs inside an existing carbon dioxide chemical absorption capture device, the current monitoring system cannot detect it in time and automatically clear the blockage. The fault is often not detected until it has affected the normal operation of the device, resulting in increased maintenance costs, extended downtime of the device, and affected production efficiency.

[0005] Therefore, we proposed an intelligent CO2 chemical absorption capture method and device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent CO2 chemical absorption capture method and device to solve the problem that the existing absorption capture device mentioned in the above background technology cannot be automatically unblocked when blocked.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent CO2 chemical absorption capture device, comprising an absorption tower mechanism, the absorption tower mechanism comprising a tower body, the outer surface of the tower body is fixedly connected to a first conveying pipe near the top, the outer surface of the tower body is fixedly connected to a second conveying pipe near the bottom, the bottom of the tower body is fixedly connected to a third conveying pipe, the outer surface of the third conveying pipe is fixedly connected to a dredging component, the dredging component comprises a launch tube, the outer surface of the launch tube is fixedly connected to a mounting frame, one end of the mounting frame is provided with a multi-stage electric push rod, one end of the multi-stage electric push rod is fixedly connected to an adsorption magnet, the outer surface of the adsorption magnet is magnetically connected to a connecting magnet, the outer surface of the connecting magnet is fixedly connected to a fixing rod, one end of the fixing rod is fixedly connected to a push plate, the inner wall of the launch tube is fixedly connected to a fixing ring near the middle part, a fixing spring is provided on one side of the fixing ring, one end of the fixing spring is fixedly connected to one side of the connecting magnet, the inner wall of the launch tube is fixedly connected to a retaining ring near one end, and the retaining ring is used to block the connecting magnet.

[0008] Preferably, the fixing rod slides inside the fixing ring, the adsorption magnet slides inside the retaining ring, and the fixing spring is arranged outside the fixing rod.

[0009] Preferably, a first flow meter is provided on the outer surface of one side of the first delivery pipe, and the first flow meter is used to detect the flow rate of the fluid inside the first delivery pipe. A first regulating valve is provided on the outer surface of the other side of the first delivery pipe, and the first regulating valve is used to adjust the flow rate of the fluid inside the first delivery pipe.

[0010] Preferably, a second flow meter is provided on the outer surface of one side of the second delivery pipe, and the second flow meter is used to detect the flow rate of the fluid inside the second delivery pipe. A second regulating valve is provided on the outer surface of the other side of the second delivery pipe, and the second regulating valve is used to adjust the flow rate of the fluid inside the second delivery pipe.

[0011] Preferably, a third flow meter is arranged on the outer surface of one side of the third delivery pipe, and the third flow meter is used to detect the flow rate of the fluid inside the third delivery pipe. A third regulating valve is arranged on the outer surface of the other side of the third delivery pipe, and the third regulating valve is used to adjust the flow rate of the fluid inside the third delivery pipe.

[0012] Preferably, an acoustic sensor is arranged at the bottom of the third delivery pipe, and the acoustic sensor is used to detect the flow sound inside the third delivery pipe, a mounting block is fixedly connected to the outer surface of the third delivery pipe, a controller is arranged at the top of the mounting block near one side, and an alarm is arranged at the top of the mounting block near the other side, and the alarm is used to transmit abnormal conditions to the controller in a timely manner.

[0013] Preferably, a flue gas cooler is arranged on one side of the absorption tower mechanism through a pipeline, a rich liquid pump is arranged on the bottom end of the absorption tower mechanism through a pipeline, and a heat exchanger is arranged on one side of the rich liquid pump through a pipeline.

[0014] Preferably, a lean liquid pump is arranged at the bottom of the heat exchanger through a pipeline, a regeneration tower is arranged on one side of the lean liquid pump through a pipeline, and a reboiler is arranged at the bottom of the regeneration tower through a pipeline.

[0015] Preferably, a regeneration gas separator is arranged on the top of the regeneration tower through a pipeline, the regeneration gas separator is connected to the heat exchanger through a pipeline, a mixer is arranged on the top of the heat exchanger through a pipeline, the mixer is connected to the absorption tower mechanism through a pipeline, and an absorbent storage tank is arranged on the top of the mixer through a pipeline.

[0016] A method for intelligent CO2 chemical absorption capture, comprising the following steps: S1. First, the flue gas after desulfurization, denitrification and dust removal is transported to the flue gas cooler. The flue gas cooler recovers the heat in the flue gas by adding the absorbent in the absorbent storage tank to the mixer, and then transporting it to the absorption tower mechanism. The fluid at the bottom of the absorption tower mechanism is transported to the rich liquid pump. The rich liquid is transported to the regeneration tower through the heat exchanger. After desorption in the regeneration tower, the desorbed lean liquid is transported back to the heat exchanger, and condensed water is formed through the reboiler. Then, the low-pressure steam is transported to the regeneration tower. The water vapor, regeneration gas and carbon dioxide at the top of the regeneration tower will enter the regeneration gas separator, and the formed high-concentration gaseous carbon dioxide will be transported out; S2. Secondly, when the fluid passes through the first delivery pipe, the second delivery pipe, and the third delivery pipe, the flow rate of the fluid inside can be detected by the first flow meter, the second flow meter, and the third flow meter. When the flow rate exceeds the threshold, the first regulating valve, the second regulating valve, and the third regulating valve are used to adjust the flow rate; S3. Then, when the acoustic sensor detects that the signal is abnormal, the abnormal information is transmitted to the controller, and the controller controls the multi-stage electric push rod to start, so as to dredge the bend of the third conveying pipe. When fluid flows inside the pipe, the fluid interacts with the inner wall of the pipe and the components in the pipe to generate sound signals. These sound signals propagate in the pipe wall and the surrounding medium in the form of sound waves. When the fluid flows at a fast speed, passes through a narrow area or encounters an obstacle, turbulence and vibration will be generated, thereby generating sound of a specific frequency and intensity. When the generated sound is abnormal, there is a high probability of blockage. S4. When a blockage is detected inside the third conveying pipe, the multi-stage electric push rod is started, so that the multi-stage electric push rod drives the adsorption magnet to drive the connecting magnet, the fixed rod and the push plate to pull. When pulling slowly, suction is generated, which will suck the blockage in the curved part of the third conveying pipe, thereby loosening the blockage. As the connecting magnet is pulled, the fixed spring will be stretched and expanded. When the connecting magnet reaches the retaining ring, it will be blocked and cannot move further, while the adsorption magnet can continue to move. When the pulling force is greater than the suction force, the adsorption magnet and the connecting magnet will separate. Under the rebound action of the fixed spring, the connecting magnet rebounds quickly, so that the push plate connected by the fixed rod will quickly push toward the direction of the third conveying pipe, and the formed air cannon will clear the blockage at the bend.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the multi-stage electric push rod is controlled by the controller to retract. At this time, the adsorption magnet and the connecting magnet are magnetically connected, and the fixed spring is in the initial state of retraction. When a blockage is detected inside the third conveying pipe, the multi-stage electric push rod is started, so that the multi-stage electric push rod drives the adsorption magnet to drive the connecting magnet, the fixed rod and the push plate to pull. When pulling slowly, suction is generated, which will suck the blockage in the curved part of the third conveying pipe, thereby loosening the blockage. As the connecting magnet is pulled, the fixed spring will be stretched and expanded. When the connecting magnet reaches the retaining ring, it will be blocked and cannot move further, while the adsorption magnet can continue to move. When the pulling force is greater than the suction force, the adsorption magnet and the connecting magnet will separate. Under the rebound action of the fixed spring, the connecting magnet rebounds quickly, so that the push plate connected by the fixed rod will quickly push toward the direction of the third conveying pipe, and the formed air cannon will dredge the blockage at the bend, thereby having the benefit of automatic dredging.

[0018] 2. When in use, fluid will pass through the first delivery pipe, the second delivery pipe and the third delivery pipe. Under normal operating conditions, the flow rate in the pipe should be within a relatively stable range. If the pipe is blocked, the flow rate will drop significantly. Therefore, when fluid passes through the first delivery pipe, the flow rate of the fluid inside the first delivery pipe is detected by the first flow meter. When the flow rate is too large, the first regulating valve is adjusted to reduce the flow rate of the fluid. On the contrary, when the flow rate is too small, the first regulating valve is adjusted to increase the flow rate of the fluid. The same is true for the second and third delivery pipes. By connecting the electrical connection between the acoustic sensor and the controller, the flow rate of the fluid in the first delivery pipe is increased. When the acoustic sensor detects an abnormal signal, it will transmit the abnormal information to the controller, and the controller will control the multi-stage electric push rod to start and clear the bend of the third delivery pipe. When fluid flows inside the pipeline, the fluid interacts with the inner wall of the pipeline and the components in the pipeline to generate sound signals. These sound signals propagate in the pipeline wall and the surrounding medium in the form of sound waves. When the fluid flows faster, passes through a narrow area or encounters an obstacle, turbulence and vibration will occur, thereby generating sound of a specific frequency and intensity. When the sound generated is abnormal, there is a high probability of blockage.

[0019] 3. When in use, the flue gas after desulfurization, denitrification and dust removal is transported to the flue gas cooler. The flue gas cooler can reduce the temperature of the inhaled flue gas. During the flue gas cooling process, the flue gas cooler can recover the heat in the flue gas. The flue gas filtered by the absorption tower mechanism is the decarbonized flue gas output from the top of the tower body. The absorbent inside the absorbent storage tank is added to the inside of the mixer, and then transported to the inside of the absorption tower mechanism. The fluid at the bottom of the absorption tower mechanism is transported to the rich liquid pump. In the process of carbon dioxide chemical absorption capture, rich liquid refers to the absorption liquid after carbon dioxide is absorbed. The main function of the rich liquid pump is to transport the rich liquid at the bottom of the absorption tower mechanism to the regeneration tower through the heat exchanger. After the regeneration tower After desorption, the desorbed lean liquid is transported back to the heat exchanger, formed into condensed water through the reboiler, and then transported to the regeneration tower by low-pressure steam. The water vapor, regeneration gas and carbon dioxide at the top of the regeneration tower will enter the regeneration gas separator, and the formed high-concentration gaseous carbon dioxide will be transported out. The function of the regeneration gas separator is mainly to separate the liquid components in the regeneration gas coming out of the regeneration tower. The regeneration gas mainly contains carbon dioxide and water vapor. During the regeneration process, the absorbent desorbs carbon dioxide at high temperature. At the same time, since the absorbent itself is liquid, some small liquid droplets or mist may be entrained during the desorption process. If these liquids are not separated, the purity of the carbon dioxide will be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a separation system diagram of an intelligent CO2 chemical absorption capture device of the present invention; Figure 2It is a front perspective view of the absorption tower mechanism part of an intelligent CO2 chemical absorption capture device of the present invention; Figure 3 It is a side perspective view of the absorption tower mechanism of an intelligent CO2 chemical absorption capture device of the present invention; Figure 4 It is a partially cutaway stereoscopic view of a dredging component of an intelligent CO2 chemical absorption capture device of the present invention; Figure 5 It is a partially cutaway stereoscopic view of a dredging component of an intelligent CO2 chemical absorption capture device of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 It is a partial three-dimensional diagram of a dredging component of an intelligent CO2 chemical absorption capture device of the present invention; Figure 8 This is a partially cutaway stereoscopic view of a launch tube of an intelligent CO2 chemical absorption capture device of the present invention.

[0021] In the figure: 1. Flue gas cooler; 2. Absorption tower mechanism; 201. Tower body; 202. First delivery pipe; 203. First flow meter; 204. First regulating valve; 205. Second delivery pipe; 206. Second flow meter; 207. Second regulating valve; 208. Third delivery pipe; 209. Third flow meter; 210. Third regulating valve; 211. Acoustic sensor; 212. Mounting block; 213. Alarm; 214. Dredging assembly; 2140. Retaining ring; 2141, launching tube; 2142, mounting frame; 2143, fixing spring; 2144, pushing plate; 2145, multi-stage electric push rod; 2146, connecting magnet; 2147, adsorption magnet; 2148, fixing rod; 2149, fixing ring; 215, controller; 3, rich liquid pump; 4, heat exchanger; 5, lean liquid pump; 6, regeneration tower; 7, reboiler; 8, mixer; 9, absorbent storage tank; 10, regeneration gas separator. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Reference Figure 1 - Figure 8As shown, the present invention provides a technical solution: an intelligent CO2 chemical absorption capture device, including an absorption tower mechanism 2, the absorption tower mechanism 2 includes a tower body 201, the outer surface of the tower body 201 is fixedly connected to a first delivery pipe 202 near the top, the outer surface of the tower body 201 is fixedly connected to a second delivery pipe 205 near the bottom, the bottom of the tower body 201 is fixedly connected to a third delivery pipe 208, the outer surface of the third delivery pipe 208 is fixedly connected to a dredging component 214, the dredging component 214 includes a launch tube 2141, the outer surface of the launch tube 2141 is fixedly connected to a mounting frame 2142, one end of the mounting frame 2142 is provided with a multi-stage electric push rod 2145, one end of the multi-stage electric push rod 2145 is fixedly connected to an adsorption magnet 2147, and the adsorption magnet 2147 is fixedly connected to the adsorption magnet 2147. The outer surface of the launch tube 2141 is magnetically connected to a connecting magnet 2146, the outer surface of the connecting magnet 2146 is fixedly connected to a fixing rod 2148, one end of the fixing rod 2148 is fixedly connected to a pushing plate 2144, and the inner wall of the launch tube 2141 is fixedly connected to a fixing ring 2149 near the middle part, a fixing spring 2143 is arranged on one side of the fixing ring 2149, one end of the fixing spring 2143 is fixedly connected to one side of the connecting magnet 2146, a blocking ring 2140 is fixedly connected to the inner wall of the launch tube 2141 near one end, and the blocking ring 2140 is used to block the connecting magnet 2146, the fixing rod 2148 slides inside the fixing ring 2149, the adsorption magnet 2147 slides inside the blocking ring 2140, and the fixing spring 2143 is arranged on the outside of the fixing rod 2148.

[0024] In this embodiment, when in use, the installation of the multi-stage electric push rod 2145 is completed by fixing the mounting frame 2142 on the outside of the launching tube 2141, and then the multi-stage electric push rod 2145 is controlled by the controller 215 to retract. At this time, the adsorption magnet 2147 and the connecting magnet 2146 are magnetically connected, and the fixing spring 2143 is in an initial state of retraction. When a blockage is detected inside the third conveying tube 208, the multi-stage electric push rod 2145 is started, so that the multi-stage electric push rod 2145 drives the adsorption magnet 2147 to drive the connecting magnet 2146, the fixing rod 2148 and the pushing plate 2144 to pull, and a suction force is generated when slowly pulling, which will pull the third conveying tube 208. The blockage in the curved part of the tube 208 is sucked out to loosen the blockage. As the connecting magnet 2146 is pulled, the fixing spring 2143 is stretched and expanded. When the connecting magnet 2146 reaches the retaining ring 2140, it is blocked and cannot move further, while the adsorption magnet 2147 can continue to move. When the pulling force is greater than the suction force, the adsorption magnet 2147 and the connecting magnet 2146 are separated. Under the rebound action of the fixing spring 2143, the connecting magnet 2146 rebounds quickly, so that the pushing plate 2144 connected by the fixing rod 2148 is quickly pushed toward the direction of the third conveying tube 208. The formed air cannon can clear the blockage in the bend, thereby having the benefit of automatic clearing.

[0025] Embodiment 2: Figure 1 - Figure 8As shown, a first flow meter 203 is disposed on an outer surface of one side of the first delivery pipe 202, and the first flow meter 203 is used to detect the flow rate of the fluid inside the first delivery pipe 202. A first regulating valve 204 is disposed on an outer surface of the other side of the first delivery pipe 202, and the first regulating valve 204 is used to adjust the flow rate of the fluid inside the first delivery pipe 202. A second flow meter 206 is disposed on an outer surface of one side of the second delivery pipe 205, and the second flow meter 206 is used to detect the flow rate of the fluid inside the second delivery pipe 205. A second regulating valve 207 is disposed on an outer surface of the other side of the second delivery pipe 205, and the second regulating valve 207 is used to adjust the flow rate of the fluid inside the second delivery pipe 205. A third delivery pipe 208 is disposed on an outer surface of one side of the third delivery pipe 208. A third flow meter 209 is provided, and the third flow meter 209 is used to detect the flow rate of the fluid inside the third delivery pipe 208. A third regulating valve 210 is provided on the outer surface of the other side of the third delivery pipe 208, and the third regulating valve 210 is used to adjust the flow speed of the fluid inside the third delivery pipe 208. An acoustic sensor 211 is provided at the bottom of the third delivery pipe 208, and the acoustic sensor 211 is used to detect the flow sound inside the third delivery pipe 208. A mounting block 212 is fixedly connected to the outer surface of the third delivery pipe 208, a controller 215 is provided at the top of the mounting block 212 near one side, and an alarm 213 is provided at the top of the mounting block 212 near the other side, and the alarm 213 is used to promptly transmit abnormal conditions to the controller 215.

[0026] In this embodiment, when in use, fluid will pass through the first delivery pipe 202, the second delivery pipe 205 and the third delivery pipe 208. Under normal operating conditions, the flow rate in the pipeline should be within a relatively stable range. If the pipeline is blocked, the flow rate will significantly decrease. Therefore, when fluid passes through the first delivery pipe 202, the flow rate of the fluid inside the first delivery pipe 202 is detected by the first flow meter 203. When the flow rate is too large, the first regulating valve 204 is adjusted to reduce the flow rate of the fluid. On the contrary, when the flow rate is too small, the first regulating valve 204 is adjusted to increase the flow rate of the fluid. Similarly, when fluid passes through the second delivery pipe 205, the flow rate of the fluid inside the second delivery pipe 205 is detected by the second flow meter 206. When the flow rate is too large, the second regulating valve 207 is adjusted to reduce the flow rate of the fluid. On the contrary, when the flow rate is too small, the second regulating valve 207 is adjusted to increase the flow rate of the fluid. When fluid passes through the third delivery pipe 208, the flow rate of the fluid inside the second delivery pipe 205 is detected by the second flow meter 206. The flow rate of the fluid inside the third delivery pipe 208 is detected by the third flow meter 209. When the flow rate is too large, the third regulating valve 210 is adjusted to reduce the flow rate of the fluid. Conversely, when the flow rate is too small, the third regulating valve 210 is adjusted to increase the flow rate of the fluid. By electrically connecting the acoustic sensor 211 and the controller 215, when the acoustic sensor 211 detects that the signal is abnormal, the abnormal information will be transmitted to the controller 215, and the controller 215 controls the multi-stage electric push rod 2145 to start, so as to clear the bend of the third delivery pipe 208. When there is fluid flowing inside the pipeline, the fluid interacts with the inner wall of the pipeline and the components in the pipeline to generate sound signals. These sound signals propagate in the pipeline wall and the surrounding medium in the form of sound waves. When the fluid flows faster, passes through a narrow area or encounters an obstacle, turbulence and vibration will be generated, thereby generating sound of a specific frequency and intensity. When the generated sound is abnormal, there is a high probability of blockage.

[0027] Embodiment three: Figure 1 - Figure 8 As shown, a flue gas cooler 1 is arranged on one side of the absorption tower mechanism 2 through a pipeline, a rich liquid pump 3 is arranged at the bottom of the absorption tower mechanism 2 through a pipeline, a heat exchanger 4 is arranged on one side of the rich liquid pump 3 through a pipeline, a lean liquid pump 5 is arranged at the bottom of the heat exchanger 4 through a pipeline, a regeneration tower 6 is arranged on one side of the lean liquid pump 5 through a pipeline, a reboiler 7 is arranged at the bottom of the regeneration tower 6 through a pipeline, a regeneration gas separator 10 is arranged on the top of the regeneration tower 6 through a pipeline, the regeneration gas separator 10 and the heat exchanger 4 are connected by a pipeline, a mixer 8 is arranged on the top of the heat exchanger 4 through a pipeline, the mixer 8 and the absorption tower mechanism 2 are connected by a pipeline, and an absorbent storage tank 9 is arranged on the top of the mixer 8 through a pipeline.

[0028] In this embodiment, when in use, first, the flue gas after desulfurization, denitrification and dust removal is transported to the flue gas cooler 1. The flue gas cooler 1 can reduce the temperature of the inhaled flue gas. During the flue gas cooling process, the flue gas cooler 1 can recover the heat in the flue gas. The flue gas filtered by the absorption tower mechanism 2 is the decarbonized flue gas output from the top of the tower body 201. The absorbent inside the absorbent storage tank 9 is added to the inside of the mixer 8, and then transported to the inside of the absorption tower mechanism 2. The fluid at the bottom of the absorption tower mechanism 2 is transported to the rich liquid pump 3. In the process of chemical absorption and capture of carbon dioxide, the rich liquid refers to the absorption liquid after absorbing carbon dioxide. The main function of the rich liquid pump 3 is to transport the rich liquid at the bottom of the absorption tower mechanism 2 to the regeneration tower through the heat exchanger 4. 6. After desorption in the regeneration tower 6, the desorbed lean liquid is transported back to the heat exchanger 4, condensed water is formed through the reboiler 7, and then the low-pressure steam is transported to the regeneration tower 6. The water vapor, regeneration gas and carbon dioxide at the top of the regeneration tower 6 will enter the regeneration gas separator 10, and the formed high-concentration gaseous carbon dioxide will be transported out. The function of the regeneration gas separator 10 is mainly to separate the liquid component in the regeneration gas coming out of the regeneration tower 6. The regeneration gas mainly contains carbon dioxide and water vapor. Because during the regeneration process, the absorbent desorbs carbon dioxide at high temperature. At the same time, since the absorbent itself is liquid, some small liquid droplets or mist may be entrained during the desorption process. If these liquids are not separated, the purity of the carbon dioxide will be affected.

[0029] The use method and working principle of this device: When in use, first, the flue gas after desulfurization, denitrification and dust removal is transported to the flue gas cooler 1. The flue gas cooler 1 can reduce the temperature of the inhaled flue gas. During the flue gas cooling process, the flue gas cooler 1 can recover the heat in the flue gas. The flue gas filtered by the absorption tower mechanism 2 is the decarbonized flue gas output from the top of the tower body 201, and the absorbent inside the absorbent storage tank 9 is added to the inside of the mixer 8, and then transported to the inside of the absorption tower mechanism 2. The fluid at the bottom of the absorption tower mechanism 2 is transported to the rich liquid pump 3. In the process of carbon dioxide chemical absorption capture, the rich liquid refers to the absorption liquid after absorbing carbon dioxide. The main function of the rich liquid pump 3 is to transport the rich liquid at the bottom of the absorption tower mechanism 2 to the regeneration through the heat exchanger 4. Tower 6, after desorption in the regeneration tower 6, the desorbed lean liquid is transported back to the heat exchanger 4, condensed water is formed through the reboiler 7, and then the low-pressure steam is transported to the regeneration tower 6. The water vapor, regeneration gas and carbon dioxide at the top of the regeneration tower 6 will enter the regeneration gas separator 10, and the formed high-concentration gaseous carbon dioxide will be transported out. The function of the regeneration gas separator 10 is mainly to separate the liquid component in the regeneration gas coming out of the regeneration tower 6. The regeneration gas mainly contains carbon dioxide and water vapor. Because in the regeneration process, the absorbent desorbs carbon dioxide at high temperature. At the same time, since the absorbent itself is liquid, some small liquid droplets or mist may be entrained during the desorption process. If these liquids are not separated, the purity of the carbon dioxide will be affected. When in use, There will be fluid passing through the first delivery pipe 202, the second delivery pipe 205 and the third delivery pipe 208. Under normal operating conditions, the flow rate in the pipeline should be within a relatively stable range. If the pipeline is blocked, the flow rate will drop significantly. Therefore, when there is fluid passing through the first delivery pipe 202, the flow rate of the fluid inside the first delivery pipe 202 is detected by the first flow meter 203. When the flow rate is too large, the first regulating valve 204 is adjusted to reduce the flow rate of the fluid. Conversely, when the flow rate is too small, the first regulating valve 204 is adjusted to increase the flow rate of the fluid. Similarly, when there is fluid passing through the second delivery pipe 205, the flow rate of the fluid inside the second delivery pipe 205 is detected by the second flow meter 206. When the flow rate is too large, the first regulating valve 204 is adjusted to increase the flow rate of the fluid. The second regulating valve 207 is adjusted to reduce the flow rate of the fluid. On the contrary, when the flow rate is too small, the second regulating valve 207 is adjusted to increase the flow rate of the fluid. When the fluid passes through the third delivery pipe 208, the flow rate of the fluid inside the third delivery pipe 208 is detected by the third flow meter 209. When the flow rate is too large, the third regulating valve 210 is adjusted to reduce the flow rate of the fluid. On the contrary, when the flow rate is too small, the third regulating valve 210 is adjusted to increase the flow rate of the fluid. By electrically connecting the acoustic sensor 211 and the controller 215, when the acoustic sensor 211 detects an abnormal signal, the abnormal information will be transmitted to the controller 215, and the controller 215 controls the multi-stage electric push rod 2145 to start.The bend of the third delivery pipe 208 is cleared. When fluid flows inside the pipe, the interaction between the fluid and the inner wall of the pipe and the components in the pipe will generate sound signals. These sound signals propagate in the pipe wall and the surrounding medium in the form of sound waves. When the fluid flows faster, passes through a narrow area or encounters an obstacle, turbulence and vibration will occur, thereby generating sound of a specific frequency and intensity. When the generated sound is abnormal, there is a high probability of blockage. When in use, the installation of the multi-stage electric push rod 2145 is completed by fixing the mounting bracket 2142 to the outside of the transmitting tube 2141. Then, the multi-stage electric push rod 2145 is controlled by the controller 215 to retract. At this time, the adsorption magnet 2147 and the connecting magnet 2146 are magnetically connected, and the fixing spring 2143 is in the initial state of contraction. When a blockage is detected inside the third delivery pipe 208, the multi-stage electric push rod is started. The push rod 2145 drives the adsorption magnet 2147 to drive the connecting magnet 2146, the fixing rod 2148 and the pushing plate 2144 to pull. When the push rod 2145 is pulled slowly, suction is generated, which will suck the blockage in the curved part of the third conveying pipe 208, thereby loosening the blockage. As the connecting magnet 2146 is pulled, the fixing spring 2143 will be stretched and expanded. When the connecting magnet 2146 reaches the retaining ring 2140, it will be blocked and cannot move further, while the adsorption magnet 2147 can continue to move. When the pulling force is greater than the suction force, the adsorption magnet 2147 and the connecting magnet 2146 will separate. Under the rebound effect of the fixing spring 2143, the connecting magnet 2146 rebounds quickly, so that the pushing plate 2144 connected by the fixing rod 2148 will quickly push toward the direction of the third conveying pipe 208. The formed air cannon will clear the blockage in the curved part, thereby having the benefit of automatic clearing.

[0030] The wiring diagrams of the first flow meter 203, the second flow meter 206, the third flow meter 209, the acoustic sensor 211, the alarm 213, the multi-stage electric push rod 2145, the controller 215, the rich liquid pump 3, the heat exchanger 4, the lean liquid pump 5, the reboiler 7, the mixer 8 and the regeneration gas separator 10 in the present invention are common knowledge in the art, and their working principles are already known technologies. The models are selected according to the actual use. Therefore, the control method and wiring arrangement of the first flow meter 203, the second flow meter 206, the third flow meter 209, the acoustic sensor 211, the alarm 213, the multi-stage electric push rod 2145, the controller 215, the rich liquid pump 3, the heat exchanger 4, the lean liquid pump 5, the reboiler 7, the mixer 8 and the regeneration gas separator 10 will no longer be explained in detail.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent CO2 chemical absorption capture device, comprising an absorption tower mechanism (2), characterized in that: The absorption tower mechanism (2) comprises a tower body (201); a first conveying pipe (202) is fixedly connected to the outer surface of the tower body (201) near the top end; a second conveying pipe (205) is fixedly connected to the outer surface of the tower body (201) near the bottom end; a third conveying pipe (208) is fixedly connected to the bottom end of the tower body (201); a dredging component (214) is fixedly connected to the outer surface of the third conveying pipe (208); the dredging component (214) comprises a launching tube (2141); a mounting frame (2142) is fixedly connected to the outer surface of the launching tube (2141); a multi-stage electric push rod (2145) is provided at one end of the mounting frame (2142); and an adsorption magnetic The invention relates to an iron (2147), wherein the outer surface of the adsorption magnet (2147) is magnetically connected to a connecting magnet (2146), the outer surface of the connecting magnet (2146) is fixedly connected to a fixing rod (2148), one end of the fixing rod (2148) is fixedly connected to a pushing plate (2144), the inner wall of the launch tube (2141) is fixedly connected to a fixing ring (2149) near the middle part, a fixing spring (2143) is provided on one side of the fixing ring (2149), one end of the fixing spring (2143) is fixedly connected to one side of the connecting magnet (2146), and a blocking ring (2140) is fixedly connected to the inner wall of the launch tube (2141) near one end, and the blocking ring (2140) is used to block the connecting magnet (2146).

2. The intelligent CO2 chemical absorption capture device according to claim 1 is characterized in that: The fixing rod (2148) slides inside the fixing ring (2149), the adsorption magnet (2147) slides inside the retaining ring (2140), and the fixing spring (2143) is arranged outside the fixing rod (2148).

3. The intelligent CO2 chemical absorption capture device according to claim 2 is characterized in that: A first flow meter (203) is arranged on the outer surface of one side of the first delivery pipe (202), and the first flow meter (203) is used to detect the flow rate of the fluid inside the first delivery pipe (202); a first regulating valve (204) is arranged on the outer surface of the other side of the first delivery pipe (202), and the first regulating valve (204) is used to adjust the flow rate of the fluid inside the first delivery pipe (202).

4. The intelligent CO2 chemical absorption capture device according to claim 3 is characterized in that: A second flow meter (206) is provided on the outer surface of one side of the second delivery pipe (205), and the second flow meter (206) is used to detect the flow rate of the fluid inside the second delivery pipe (205); a second regulating valve (207) is provided on the outer surface of the other side of the second delivery pipe (205), and the second regulating valve (207) is used to adjust the flow rate of the fluid inside the second delivery pipe (205).

5. The intelligent CO2 chemical absorption capture device according to claim 4 is characterized in that: A third flow meter (209) is provided on the outer surface of one side of the third delivery pipe (208), and the third flow meter (209) is used to detect the flow rate of the fluid inside the third delivery pipe (208). A third regulating valve (210) is provided on the outer surface of the other side of the third delivery pipe (208), and the third regulating valve (210) is used to adjust the flow rate of the fluid inside the third delivery pipe (208).

6. The intelligent CO2 chemical absorption capture device according to claim 5 is characterized in that: An acoustic sensor (211) is arranged at the bottom of the third delivery pipe (208), and the acoustic sensor (211) is used to detect the flow sound inside the third delivery pipe (208); a mounting block (212) is fixedly connected to the outer surface of the third delivery pipe (208); a controller (215) is arranged at the top of the mounting block (212) near one side; an alarm (213) is arranged at the top of the mounting block (212) near the other side, and the alarm (213) is used to promptly transmit abnormal conditions to the controller (215).

7. The intelligent CO2 chemical absorption capture device according to claim 6 is characterized in that: A flue gas cooler (1) is arranged on one side of the absorption tower mechanism (2) through a pipeline, a rich liquid pump (3) is arranged on the bottom end of the absorption tower mechanism (2) through a pipeline, and a heat exchanger (4) is arranged on one side of the rich liquid pump (3) through a pipeline.

8. The intelligent CO2 chemical absorption capture device according to claim 7 is characterized in that: A lean liquid pump (5) is arranged at the bottom of the heat exchanger (4) through a pipeline, a regeneration tower (6) is arranged on one side of the lean liquid pump (5) through a pipeline, and a reboiler (7) is arranged at the bottom of the regeneration tower (6) through a pipeline.

9. The intelligent CO2 chemical absorption capture device according to claim 8 is characterized in that: A regeneration gas separator (10) is arranged on the top of the regeneration tower (6) via a pipeline, the regeneration gas separator (10) is connected to the heat exchanger (4) via a pipeline, a mixer (8) is arranged on the top of the heat exchanger (4) via a pipeline, the mixer (8) is connected to the absorption tower mechanism (2) via a pipeline, and an absorbent storage tank (9) is arranged on the top of the mixer (8) via a pipeline.

10. A method for intelligent CO2 chemical absorption capture, characterized in that: The intelligent CO2 chemical absorption capture device according to claim 9 is used, comprising the following steps: S1. First, the flue gas after desulfurization, denitrification and dust removal is transported to the flue gas cooler (1). The flue gas cooler (1) recovers the heat in the flue gas by adding the absorbent in the absorbent storage tank (9) to the mixer (8), and then transporting it to the absorption tower mechanism (2). The fluid at the bottom of the absorption tower mechanism (2) is transported to the rich liquid pump (3). The rich liquid is transported to the regeneration tower (6) through the heat exchanger (4). After desorption in the regeneration tower (6), the desorbed lean liquid is transported back to the heat exchanger (4), passes through the reboiler (7) to form condensed water, and then low-pressure steam is transported to the regeneration tower (6). The water vapor, regeneration gas and carbon dioxide at the top of the regeneration tower (6) enter the regeneration gas separator (10), and the formed high-concentration gaseous carbon dioxide is transported out. S2. Secondly, when a fluid passes through the first delivery pipe (202), the second delivery pipe (205), and the third delivery pipe (208), the flow rate of the fluid inside the first flow meter (203), the second flow meter (206), and the third flow meter (209) can be detected. When the flow rate exceeds a threshold, the first regulating valve (204), the second regulating valve (207), and the third regulating valve (210) are used to adjust the flow rate. S3. Then, when the acoustic sensor (211) detects that the signal is abnormal, the abnormal information is transmitted to the controller (215), and the controller (215) controls the multi-stage electric push rod (2145) to start, so as to clear the bend of the third delivery pipe (208). When fluid flows inside the pipe, the fluid interacts with the inner wall of the pipe and the components in the pipe to generate sound signals. These sound signals propagate in the pipe wall and the surrounding medium in the form of sound waves. When the fluid flows at a high speed, passes through a narrow area or encounters an obstacle, turbulence and vibration are generated, thereby generating sound of a specific frequency and intensity. When the generated sound is abnormal, it is very likely that there is a blockage. S4. When a blockage is detected inside the third delivery tube (208), the multi-stage electric push rod (2145) is activated, so that the multi-stage electric push rod (2145) drives the adsorption magnet (2147) to drive the connecting magnet (2146), the fixing rod (2148) and the pushing plate (2144) to pull. When the pulling is slow, suction is generated, which will suck the blockage in the curved part of the third delivery tube (208), thereby loosening the blockage. As the connecting magnet (2146) is pulled, the fixing spring (2143) is stretched and expanded. When the connecting magnet (2146) is pulled, the fixing spring (2143) is stretched and expanded. When the magnet (2146) reaches the retaining ring (2140), it will be blocked and unable to move further, while the adsorption magnet (2147) can continue to move. When the pulling force is greater than the suction force, the adsorption magnet (2147) and the connecting magnet (2146) will separate. Under the rebound action of the fixed spring (2143), the connecting magnet (2146) will rebound quickly, so that the pushing plate (2144) connected by the fixed rod (2148) will be quickly pushed in the direction of the third conveying pipe (208), and the formed air cannon will clear the blockage at the bend.

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