Split phase device for a carbon capture two-phase absorbent
Patent Information
- Application Number
- CN202610372164.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-25
- Publication Date
- 2026-06-19
Smart Images
Figure CN122230487A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of separation technology, and more specifically, to a split-phase separation device for capturing two-phase absorbents for carbon capture. Background Technology
[0002] Carbon capture, a technology that removes carbon dioxide from industrial emissions or the atmosphere, is crucial for mitigating climate change. The capture process often uses chemical absorbents, among which "two-phase absorbents," due to their ability to automatically separate into different liquid phases after absorption, hold promise for significantly reducing regeneration energy consumption. To utilize this property, scientists have designed a "split-phase device." This enhances liquid phase separation efficiency, facilitates the collection and regeneration of the carbon dioxide-rich phase, and simultaneously enables the recycling of the absorbent, representing a key innovation for improving the energy efficiency of carbon capture systems.
[0003] In carbon capture technology, two-phase absorbents have received widespread attention due to their energy-saving and cost-reducing advantages. After absorbing carbon dioxide, two-phase absorbents form a CO2-poor liquid phase and a CO2-rich liquid phase. These two phases have a density difference and will separate into layers under the action of gravity. The phase separation effect and phase separation rate directly affect the carbon capture efficiency and operating cost.
[0004] The phase separation effect and rate of carbon capture phase separation tanks are the core key factors. Therefore, stable phase separation efficiency and operational stability are crucial for phase separation tanks. Traditional phase separation tanks suffer from poor phase separation stability due to design flaws, making stable operation impossible. In addition, the breather valve at the top of the phase separation tank can be clogged by impurities in the gas. Therefore, a filter screen is installed on the breather valve. However, the filter screen may create a pressure difference due to clogging. Traditional filter screens cannot be adjusted and are inconvenient to clean. Summary of the Invention
[0005] This invention provides a split-type phase separation device for carbon capture two-phase absorbents, solving the problem that the phase separation effect and rate are the core key of the phase separation tank in related technologies. Therefore, stable phase separation and separation efficiency, as well as stable operation, are crucial for the phase separation tank. Traditional phase separation tanks suffer from poor phase separation stability due to design flaws, making stable operation impossible. Furthermore, the breather valve at the top of the phase separation tank can become clogged due to impurities in the gas. Therefore, a filter screen is installed on the breather valve. However, the filter screen may become clogged, creating a pressure difference. Traditional filter screens cannot be adjusted and are inconvenient to clean.
[0006] This invention provides a split-type phase-separation device for capturing two-phase absorbents for carbon capture, comprising a phase-separation tank, a valve fixedly installed on the upper part of one end of the phase-separation tank, an underflow pipe fixedly installed on the lower part of one end of the phase-separation tank, a cyclone separator connected to the underflow pipe and the valve, a light phase outlet fixedly installed on the other end of the phase-separation tank, a breather valve fixedly installed on the upper part of the phase-separation tank near the light phase outlet, and an vent and a heavy phase outlet fixedly installed on the lower part of the phase-separation tank near the light phase outlet. A venting device is provided at the bottom of the breather valve. The ventilation device is used to prevent the breathing valve from becoming clogged. The ventilation device includes a filter plate, an isolation plate, a ventilation pipe, a collection chamber, a ventilation component, and an adjusting component. A collection chamber is fixedly installed on the side of the breathing valve, a ventilation pipe is fixedly installed at the bottom of the collection chamber, a filter plate is connected to the end of the ventilation pipe, an isolation plate is fixedly installed on the top of the filter plate, an adjusting component is provided inside the filter plate, and a ventilation component is provided at the bottom of the filter plate. The ventilation component is raised and lowered to ventilate the holes inside the filter plate, thereby reducing the problem of filter plate clogging.
[0007] As a further optimization of the present invention, the filter plate is provided with a plurality of filter holes arranged in a circumferential array, and a filter groove is provided inside the filter hole, and an adjusting component is slidably installed inside the filter groove.
[0008] As a further optimization of the present invention, the isolation plate is fixedly installed on the side of the baffle, and the baffle corresponds to the positions of the isolation plate and the ventilation component.
[0009] As a further optimization of the present invention, the adjusting component includes a first slider and a second slider that are symmetrically arranged and slidably installed inside the filter groove. A spring plate is rotatably installed on the first slider and the second slider, and an annular rubber is fixedly installed on the side of the spring plate.
[0010] As a further optimization of the present invention, the ventilation component includes a lifting plate that is slidably installed inside the collection chamber, a sliding rod that is fixedly installed on the top of the lifting plate, and a boss that is fixedly installed on the top of the sliding rod.
[0011] As a further optimization of the present invention, the ventilation component includes a first convex plate fixedly installed on the side of the lifting plate, and a threaded rod is installed inside the first convex plate. The rotation of the threaded rod is used to drive the lifting plate to rise and fall.
[0012] As a further optimization of the present invention, the venting component includes a collecting ring slidably mounted on the outside of the slide rod. The outer diameter of the collecting ring is larger than the outer diameter of the boss, and the outer diameter of the collecting ring is smaller than the diameter of the filter hole. A circular groove is provided inside the collecting ring, and the diameter of the circular groove is smaller than the outer diameter of the boss. The circular groove is used to collect dust on the annular rubber. The moving distance of the threaded rod is greater than the height of the filter hole. The venting pipe is connected to the collecting chamber. A through hole is provided at the bottom of the collecting ring, which is connected to the inside of the collecting chamber.
[0013] As a further optimization of the present invention, the ratio of the length to the diameter of the cyclone separator cylinder is 5:1 to 20:1, and the cone angle of its cone section is 10° to 20°; the cyclone separator is provided with an overflow pipe, the ratio of the overflow pipe to the diameter of the cylinder is 1:1 to 1:4, and the ratio of the overflow pipe to the diameter of the underflow pipe is 1:1 to 1:4.
[0014] As a further optimization of the present invention, the phase separation tank is provided with a flow stabilizing plate, an inclined separation plate and a baffle plate in the flow stabilizing phase separation cavity; the inclined separation plate is arranged in parallel in a V-shape along the direction of liquid flow, and its horizontal oblique angle is 30°~60°; the baffle plate is provided with at least three layers.
[0015] As a further optimization of the present invention, the surface roughness of the inner wall of the phase separation tank, the flow stabilizing plate, the inclined separation plate, the baffle plate, and the inner wall of the cyclone separator is less than 0.3 micrometers.
[0016] The beneficial effects of this invention are as follows:
[0017] This invention discloses a split-type phase separation device for capturing two-phase absorbents with carbon. Through structural optimization of the front-end cyclone separator, the separation accuracy of two-phase absorbents with low concentration differences is improved. The rear-end phase separation tank, optimized with expansion ports, flow stabilizing plates, inclined separation plates, and baffles, achieves efficient and stable phase separation. The cooperation between the regulating component and the filter plate enables the filter plate to automatically adjust pressure. With prolonged use, when impurities adhere to the regulating component, the venting component can be raised and lowered to collect and clean the dust on the regulating component, improving ventilation efficiency and safety, and maintaining the stability of the internal pressure of the phase separation tank. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall shape of the device of the present invention;
[0019] Figure 2 This is a front view of the internal structure of the overall device of the present invention;
[0020] Figure 3 This is a diagram showing the internal structure of the discharge chamber of the present invention.
[0021] Figure 4 This is a schematic diagram of the installation position of the ventilation device of the present invention;
[0022] Figure 5 This is a schematic diagram of the internal structure of the ventilation device of the present invention;
[0023] Figure 6 This is a diagram showing the internal structure of the filter plate of the present invention.
[0024] Figure 7 This is a schematic diagram of the internal structure of the ventilation component and the regulating component of the present invention.
[0025] In the picture:
[0026] 1. Cyclone separator; 11. Inlet pipe; 12. Overflow pipe; 13. Underflow pipe; 14. Valve;
[0027] 2. Phase separation tank; 21. Feed buffer chamber; 211. Expansion port; 22. Flow stabilizing phase separation chamber; 221. Flow stabilizing plate; 222. Inclined separation plate; 223. Baffle plate; 23. Discharge chamber; 231. Transparent glass plate level gauge; 232. Breather valve; 233. Overflow weir; 234. Light phase discharge port; 235. Drain port; 236. Heavy phase discharge port; 237. Baffle;
[0028] 3. Ventilation device; 31. Filter plate; 311. Filter hole; 312. Filter slide; 32. Isolation plate; 33. Ventilation pipe; 34. Collection chamber; 35. Ventilation component; 351. Collection ring; 352. Slide rod; 353. Boss; 354. Lifting plate; 355. First convex plate; 356. Threaded rod; 36. Adjusting component; 361. First slider; 362. Spring plate; 363. Second slider; 364. Annular rubber. Detailed Implementation
[0029] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.
[0030] Example 1:
[0031] This embodiment provides a high-efficiency split-type phase separation device for low-density difference two-phase absorbents, which is suitable for the separation process of two-phase absorbents in the flue gas carbon capture system of coal-fired power plants.
[0032] The structure of this device is as follows: Figure 1 , Figure 2 As shown, it mainly consists of two parts: a cyclone separator 1 and a phase separation tank 2. The two are connected separately by a valve 14, which facilitates maintenance and system optimization.
[0033] Hydrocyclone separator structural parameters and installation
[0034] The hydrocyclone separator 1 is made of stainless steel, with a polished inner wall and a surface roughness ≤0.3μm. Specific structural parameters are as follows:
[0035] The total length of the cylinder is 1500mm, the diameter of the column section is 200mm, the length of the cone section is 500mm, and the cone angle is 15°.
[0036] The inlet pipe 11 adopts an involute inlet structure, with an equivalent diameter of 30mm, which is about 1 / 3 of the difference between the diameter of the column section and the overflow pipe.
[0037] Overflow pipe 12 has a diameter of 80mm and extends into the column section for 4 / 5 of the column section height;
[0038] The diameter of the underflow pipe 13 is 60mm;
[0039] After the overflow pipe and the underflow pipe are combined, they are connected to the upper 1 / 4 and lower 1 / 4 of the phase separation tank 2 respectively through valve 14. An expansion port 211 is provided at the connection, with the diameter increased to 1.5 times the original pipe diameter, in order to reduce the flow velocity and reduce disturbance.
[0040] Two hydrocyclone separators can be connected in parallel to adapt to high flow rate conditions; they can also be used in series according to separation accuracy requirements to improve separation efficiency.
[0041] Phase separation tank structural parameters and internal components
[0042] Phase separation tank 2 is a horizontal cylindrical structure with a total length of 4000mm and a diameter of 1200mm. It is made of 316L stainless steel and the inner wall is coated with a hydrophobic and oleophobic coating to reduce adhesion.
[0043] The tank is divided into the following sections from left to right:
[0044] Feed buffer chamber 21: 500mm in length, with two vertical flow stabilizers 221 inside, 200mm apart and 1000mm in length.
[0045] Current-stabilizing phase-splitting cavity 22: 2500mm in length, configured sequentially as follows:
[0046] 222 inclined separation plates: V-shaped arrangement, upper plate inclined upward at 30°, lower plate inclined downward at 30°, plate spacing 150mm, plate length 800mm, upper and lower plate spacing 400mm;
[0047] Baffle 223: There are three baffles, each 800mm long (about 2 / 3 of the tank width), and the spacing between the baffles is 700mm.
[0048] Discharge chamber 23: 1000mm in length, with a breather valve 232 installed on the top and a transparent glass plate level gauge 231 installed on the side wall;
[0049] The overflow weir 233 is located in the middle of the cavity, with the top of the weir 250mm from the top of the tank, and the weir opening is serrated.
[0050] The light phase discharge port 234 is located in the middle and lower part behind the weir, and the vent port 235 is located at the bottom.
[0051] The heavy phase outlet 236 is located at the bottom of the cavity, 500mm from the outlet of the last baffle plate. A baffle 237 is installed 100mm above it, with a diameter of 200mm, which is about 3 times the diameter of the outlet pipe.
[0052] After absorbing CO2, the two-phase absorbent enters the cyclone separator 1 through the inlet pipe 11. Under the action of strong cyclone, the light phase (CO2-poor phase) is discharged from the overflow pipe 12, and the heavy phase (CO2-rich phase) is discharged from the underflow pipe 13. They enter the upper and lower parts of the phase separation tank 2 through the expansion port 211, respectively.
[0053] After entering the phase separation tank, the liquid flow is initially stabilized by the flow stabilizer plate 221, and then guided by the V-shaped inclined separation plate 222, where the light and heavy phases are further separated under the action of gravity and flow direction. Subsequently, the liquid flow is slowly deflected by the baffle plate 223, providing sufficient residence time to achieve complete stratification.
[0054] The stratified light phase overflows the overflow weir 233 and is discharged from the light phase outlet 234; the heavy phase flows smoothly into the heavy phase outlet 236 from both sides of the baffle 237. The entire process maintains a stable pressure inside the tank under the pressure regulation of the breather valve 232, and the volatile gases are led to the activated carbon adsorption device for treatment through pipelines.
[0055] The device in this embodiment has been experimentally verified to reduce the phase separation time to less than 30 minutes for two-phase absorbents with a density difference of only 0.05 g / cm³. The phase separation interface is clear and stable, and the purity of both the light and heavy phases is higher than 98%. The system operates stably and is suitable for continuous carbon capture processes.
[0056] Example 2:
[0057] like Figures 1 to 3As shown in the embodiment of the present invention, a split-type phase separation device for carbon capture two-phase absorbent includes a phase separation tank 2. A valve 14 is fixedly installed on the upper part of one end of the phase separation tank 2, and an underflow pipe 13 is fixedly installed on the lower part of one end of the phase separation tank 2. A cyclone separator 1 is connected to the underflow pipe 13 and the valve 14. A light phase outlet 234 is fixedly installed on the other end of the phase separation tank 2. A breather valve 232 is fixedly installed on the upper part of the phase separation tank 2 near the light phase outlet 234. An vent 235 and a heavy phase outlet 236 are fixedly installed on the lower part of the phase separation tank 2 near the light phase outlet 234. A venting device 3 is provided at the bottom of the breather valve 232 to prevent the breather valve 232 from becoming blocked.
[0058] like Figures 4 to 7 As shown, the ventilation device 3 includes a filter plate 31, an isolation plate 32, a ventilation pipe 33, a collection chamber 34, a ventilation component 35, and an adjusting component 36. The collection chamber 34 is fixedly installed on the side of the breathing valve 232, and the ventilation pipe 33 is fixedly installed on the bottom of the collection chamber 34. The end of the ventilation pipe 33 is connected to the filter plate 31, and the isolation plate 32 is fixedly installed on the top of the filter plate 31. The adjusting component 36 is provided inside the filter plate 31, and the ventilation component 35 is provided at the bottom of the filter plate 31. The ventilation component 35 is raised and lowered to open the holes inside the filter plate 31, reducing the problem of clogging of the filter plate 31.
[0059] It should be noted that a cyclone separator 1 is provided on the side of the phase separation tank 2. The cyclone separator 1 includes an inlet pipe 11, an overflow pipe 12 and a bottom flow pipe 13. The phase separation tank 2 is provided with a feed buffer chamber 21, a steady flow phase separation chamber 22 and a discharge chamber 23. The CO2 lean liquid phase is discharged from the light phase discharge port 234, and the CO2 rich liquid phase is discharged from the heavy phase discharge port 236.
[0060] like Figure 2 As shown, after the two-phase absorbent absorbs CO2, it enters the hydrocyclone separator 1 through the inlet pipe 11. After hydrocyclone separation, the light phase component enters the upper part of the phase separation tank 2 through the overflow pipe 12 and the valve 14, while the heavy phase component enters the lower part of the phase separation tank 2 through the bottom flow pipe 13 and the valve 14. In order to further improve the adaptability to different engineering sites, the hydrocyclone separator 1 and the phase separation tank 2 are separate units. The hydrocyclone separator 1 can be connected in series or in parallel.
[0061] The light phase component enters the upper part of the phase separation tank 2 through the overflow pipe 12 and valve 14, and then enters the feed buffer chamber 21 through the expansion port 211. The heavy phase component enters the lower part of the phase separation tank 2 through the bottom flow pipe 13 and valve 14, and then enters the feed buffer chamber 21 through the expansion port 211. The expansion port 211 can reduce the inflow velocity of the liquid and reduce flow disturbance. After further stabilization by the flow stabilizer plate 221, the liquid continues to advance into the inclined separation plate 222. Under the action of the V-shaped separation plate, the light and heavy phases are further separated, ensuring the uniformity of the upper light phase component and the lower heavy phase component. The separated solution enters the baffle plate 223, which provides sufficient residence time and a slow flow rate to further stabilize and separate the two phase absorbents. Finally, it enters the discharge chamber 23, ensuring the uniformity and purity of the upper and lower light and heavy phases. The two phase absorbents reach a stable stratified state during slow advancement.
[0062] The stabilized two-phase absorbent is stored in the discharge chamber 23. The phase separation interface and liquid level can be directly observed through the transparent glass plate level gauge 231. The heavy phase component is discharged through the heavy phase discharge port 236 to enter the next regeneration process. The baffle 237 allows the heavy phase component to enter the heavy phase discharge port 236 from both sides, which can prevent the formation of vortices that carry in the upper light phase component and air. The light phase component enters the light phase discharge zone through the overflow weir 233 and is discharged from the light phase discharge port 234 to enter the next process. The light phase discharge zone can be completely emptied through the vent port 235. The top of the discharge chamber 23 of the phase separation tank is equipped with a breather valve 232, which can balance the pressure difference between the inside and outside of the tank and ensure the stability of the state inside the chamber. Since the two-phase absorbent has a certain degree of volatility, the outlet of the breather valve 232 is connected to a pipeline to a collection tank or gas treatment equipment such as activated carbon to reduce the pollution of the atmosphere by solvent evaporation.
[0063] Because the gas inside the phase separation tank 2 may still contain impurities, blockage may occur when the breather valve 232 is venting. Therefore, a baffle 237 is provided at the bottom of the breather valve 232. A filter plate 31 is fixedly installed inside the baffle 237, and an isolation plate 32 is connected to the top of the filter plate 31. When the holes on the filter plate 31 pass through the isolation plate 32, the venting component 35 can be activated, allowing the venting component 35 to extend into the filter plate 31, thereby cleaning the regulating component 36. The design of the regulating component 36 allows the filter plate 31 to adapt to different pressure levels during venting, thus facilitating venting. When the pressure is too high, the regulating component 36 can automatically... The device opens to improve exhaust efficiency, while the vent 35 extends to clean dust and impurities from the regulating component 36. The dust is then transported to the inside of the collection chamber 34 through the vent pipe 33. The collection chamber 34 is opened to clean dust and impurities. This device, through the cooperation of the regulating component 36 and the filter plate 31, enables the filter plate 31 to automatically adjust the pressure. With prolonged use, when impurities adhere to the regulating component 36, the vent 35 can be raised and lowered to collect and clean the dust on the regulating component 36, thereby improving ventilation efficiency and safety, maintaining the stability of the internal pressure of the phase separation tank 2, and facilitating the collection of CO2.
[0064] like Figures 5 to 6 As shown, the filter plate 31 has a plurality of filter holes 311 arranged in a circumferential array. The filter holes 311 have filter grooves 312 inside, and an adjusting member 36 is slidably installed inside the filter grooves 312.
[0065] It should be noted that the filter plate 31 has a plurality of filter holes 311 arranged in a circumferential array. The filter holes 311 have filter grooves 312 inside, and the filter grooves 312 have adjustable members 36 slidably installed inside. In order to allow the filter holes 311 to automatically open according to the pressure during use, a plurality of filter grooves 312 are provided inside the filter holes 311, and the adjustable members 36 are slidably installed inside the filter grooves 312, so that the adjustable members 36 can automatically open when subjected to pressure changes.
[0066] like Figure 5 As shown, the isolation plate 32 is fixedly installed on the side of the baffle 237, and the baffle 237 corresponds to the positions of the isolation plate 32 and the venting component 35.
[0067] It should be noted that the isolation plate 32 is fixedly installed on the side of the baffle 237. The baffle 237 corresponds to the positions of the isolation plate 32 and the venting component 35. When the filter hole 311 needs to be cleaned, the filter plate 31 is rotated by a motor, so that the filter hole 311 on the filter plate 31 rotates to correspond to the position of the isolation plate 32, thereby achieving the effect of cleaning the filter hole 311 and the adjusting component 36 that is slidably installed inside the filter hole 311.
[0068] like Figures 6 to 7 As shown, the adjusting member 36 includes a first slider 361 and a second slider 363 symmetrically arranged inside the filter slide groove 312. A spring plate 362 is rotatably mounted on the first slider 361 and the second slider 363. An annular rubber 364 is fixedly mounted on the side of the spring plate 362.
[0069] It should be noted that when the spring plate 362 is not under force, the spring plate 362 is in a bent state, and therefore the annular rubber 364 installed on the spring plate 362 is also in a bent state. When the pressure inside the phase separation tank 2 changes, the first slider 361 and the second slider 363 move away from each other, thereby causing the spring plate 362 to open. This allows the holes of the annular rubber 364 inside the filter hole 311 to become larger, thereby achieving the function of adjusting the size of the holes inside the filter hole 311.
[0070] like Figures 6 to 7 As shown, the ventilation component 35 includes a lifting plate 354 that is slidably installed inside the collection chamber 34. A sliding rod 352 is fixedly installed on the top of the lifting plate 354, and a boss 353 is fixedly installed on the top of the sliding rod 352.
[0071] It should be noted that the ventilation component 35 includes a lifting plate 354 slidably installed inside the collection chamber 34. A sliding rod 352 is fixedly installed on the top of the lifting plate 354, and a boss 353 is fixedly installed on the top of the sliding rod 352. When the lifting plate 354 rises, it can drive the sliding rod 352 and the boss 353 to rise, thereby causing the boss 353 to slide to the inner wall of the annular rubber 364, thereby collecting impurities and dust adhering to the inner wall of the annular rubber 364, preventing impurities and dust from clogging the annular rubber 364, and improving the stability of the annular rubber 364 under pressure automatic adjustment.
[0072] like Figures 6 to 7 As shown, the ventilation component 35 includes a first protruding plate 355 fixedly installed on the side of the lifting plate 354. A threaded rod 356 is threadedly installed inside the first protruding plate 355. The threaded rod 356 rotates to drive the lifting plate 354 to rise and fall.
[0073] It should be noted that the ventilation component 35 includes a first protruding plate 355 fixedly installed on the side of the lifting plate 354. A threaded rod 356 is installed inside the first protruding plate 355. The rotation of the threaded rod 356 is used to drive the lifting plate 354 to rise and fall. A motor is fixedly installed at the bottom of the threaded rod 356, and the output shaft of the motor is fixedly installed with the threaded rod 356. When the threaded rod 356 rotates, it can drive the threaded rod 356 to rise and fall. The threaded rod 356 is a reciprocating screw, and rotating the threaded rod 356 in one direction can drive the first protruding plate 355 to rise and fall.
[0074] like Figure 7 As shown, the ventilation component 35 includes a collection ring 351 slidably mounted on the outside of the slide rod 352. The outer diameter of the collection ring 351 is larger than the outer diameter of the boss 353, and the outer diameter of the collection ring 351 is smaller than the diameter of the filter hole 311.
[0075] It should be noted that the rising of the collecting ring 351 can completely scrape away the dust and impurities on the annular rubber 364, while also allowing the spring plate 362 to fully unfold. This creates a shaking and cleaning effect when the collecting ring 351 rises and falls, and the collecting ring 351 can also collect the impurities and dust cleaned from the annular rubber 364.
[0076] like Figure 7 As shown, the inside of the collecting ring 351 is provided with a circular groove, the diameter of which is smaller than the outer diameter of the boss 353. The circular groove is used to collect dust on the annular rubber 364.
[0077] It should be noted that the inside of the collecting ring 351 is provided with a circular groove, the diameter of which is smaller than the outer diameter of the boss 353. The circular groove is used to collect dust on the annular rubber 364, and the isolation plate 32 can isolate the top of the filter hole 311 to prevent dust from entering the phase separation tank 2 and the baffle 237, thus preventing pollution.
[0078] like Figures 6 to 7 As shown, the moving distance of the threaded rod 356 is greater than the height of the filter hole 311.
[0079] It should be noted that the moving distance of the threaded rod 356 is greater than the height of the filter hole 311, so that the lifting plate 354 can be raised and lowered, which can drive the collecting ring 351 to rise completely into the interior of the annular rubber 364, thereby opening the spring plate 362 and facilitating the cleaning of the annular rubber 364.
[0080] like Figures 6 to 7 As shown, the ventilation pipe 33 is connected to the collection chamber 34, and the bottom of the collection ring 351 is provided with a through hole that is connected to the inside of the collection chamber 34.
[0081] It should be noted that the ventilation pipe 33 is connected to the collection chamber 34, and the bottom of the collection ring 351 is provided with a through hole that is connected to the inside of the collection chamber 34. The dust collected at the bottom of the collection ring 351 can be transported to the inside of the collection chamber 34 through the ventilation pipe 33 by the suction action of the collection chamber 34, thereby achieving the effect of cleaning the filter plate 31.
[0082] like Figures 1 to 3 As shown, the ratio of the length to the diameter of the cylinder of the hydrocyclone 1 is 5:1 to 20:1, and the cone angle of its conical section is 10° to 20°; the ratio of the overflow pipe 12 to the diameter of the cylinder is 1:1 to 1:4, and the ratio of the diameter of the overflow pipe 12 to the diameter of the underflow pipe 13 is 1:1 to 1:4. The flow stabilizing and phase-separating chamber 22 of the phase-separating tank 2 is provided with a flow stabilizing plate 221, an inclined separation plate 222, and a baffle plate 223; the inclined separation plate 222 is arranged in a V-shape parallel along the direction of material flow, and its horizontal oblique angle is 30° to 60°; the baffle plate 223 is provided in at least three layers, and the surface roughness of the inner wall of the phase-separating tank 2, the flow stabilizing plate 221, the inclined separation plate 222, the baffle plate 223, and the inner wall of the hydrocyclone 1 is less than 0.3 micrometers.
[0083] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of the embodiments described above, all of which are within the protection scope of the present invention.
Claims
1. A split-type phase separation device for carbon capture two-phase absorbent, comprising a phase separation tank (2), characterized in that: A valve (14) is fixedly installed on the upper part of one end of the phase separation tank (2), and an underflow pipe (13) is fixedly installed on the lower part of one end of the phase separation tank (2). A cyclone separator (1) is connected to the underflow pipe (13) and the valve (14). A light phase outlet (234) is fixedly installed on the other end of the phase separation tank (2). A breather valve (232) is fixedly installed on the upper part of the phase separation tank (2) near the light phase outlet (234). An vent (235) and a heavy phase outlet (236) are fixedly installed on the lower part of the phase separation tank (2) near the light phase outlet (234). A ventilation device (3) is provided at the bottom of the breather valve (232). The ventilation device (3) is used to prevent the breather valve (232) from being blocked. The ventilation device (3) includes a filter plate (31), an isolation plate (32), a ventilation pipe (33), a collection chamber (34), a ventilation component (35), and an adjusting component (36). The collection chamber (34) is fixedly installed on the side of the breathing valve (232). The ventilation pipe (33) is fixedly installed at the bottom of the collection chamber (34). The filter plate (31) is connected to the end of the ventilation pipe (33). The isolation plate (32) is fixedly installed on the top of the filter plate (31). The adjusting component (36) is provided inside the filter plate (31). The ventilation component (35) is provided at the bottom of the filter plate (31). The ventilation component (35) is raised and lowered to open the holes inside the filter plate (31) and reduce the problem of the filter plate (31) being blocked.
2. The split-phase separation device for a carbon capture two-phase absorbent according to claim 1, characterized in that: The filter plate (31) is provided with a plurality of filter holes (311) arranged in a circumferential array. The filter holes (311) are provided with filter grooves (312) inside. An adjusting component (36) is slidably installed inside the filter grooves (312).
3. The split-phase separation device for a carbon capture two-phase absorbent according to claim 2, characterized in that: The isolation plate (32) is fixedly installed on the side of the baffle (237), and the baffle (237) corresponds to the positions of the isolation plate (32) and the ventilation component (35).
4. The split-phase separation device for a carbon capture two-phase absorbent according to claim 3, characterized in that: The adjusting component (36) includes a first slider (361) and a second slider (363) symmetrically arranged inside the filter slide groove (312). A spring plate (362) is rotatably mounted on the first slider (361) and the second slider (363). An annular rubber (364) is fixedly mounted on the side of the spring plate (362).
5. A split-phase separation device for a carbon capture two-phase absorbent according to claim 4, characterized in that: The ventilation component (35) includes a lifting plate (354) that is slidably installed inside the collection chamber (34). A slide rod (352) is fixedly installed on the top of the lifting plate (354), and a boss (353) is fixedly installed on the top of the slide rod (352).
6. A split-phase separation device for a carbon capture two-phase absorbent according to claim 5, characterized in that: The ventilation component (35) includes a first protruding plate (355) fixedly installed on the side of the lifting plate (354). A threaded rod (356) is installed inside the first protruding plate (355). The threaded rod (356) rotates to drive the lifting plate (354) to rise and fall.
7. A split-phase separation device for a carbon capture two-phase absorbent according to claim 6, characterized in that: The ventilation component (35) includes a collection ring (351) slidably mounted on the outside of the slide bar (352), the outer diameter of the collection ring (351) being larger than the outer diameter of the boss (353), and the outer diameter of the collection ring (351) being smaller than the diameter of the filter hole (311).
8. A split-phase separation device for a carbon capture two-phase absorbent according to claim 7, characterized in that: The collecting ring (351) has a circular groove inside, the diameter of which is smaller than the outer diameter of the boss (353). The circular groove is used to collect dust on the annular rubber (364).
9. A split-phase separation device for a carbon capture two-phase absorbent according to claim 8, characterized in that: The moving distance of the threaded rod (356) is greater than the height of the filter hole (311).
10. A split-phase separation device for a carbon capture two-phase absorbent according to claim 9, characterized in that: The ventilation pipe (33) is connected to the collection chamber (34), and the bottom of the collection ring (351) is provided with a through hole that is connected to the inside of the collection chamber (34).