Carbon dioxide recovery absorption tower for Fpso flue gas

Abstract

The utility model relates to the technical field of carbon dioxide recovery, and discloses a carbon dioxide recovery absorption tower for Fpso flue gas, which comprises a support frame, the middle of the support frame is fixedly connected with a tower body, and the right side of the bottom of the outer end of the tower body is fixedly connected with a flue gas inlet pipe. An opening is obliquely formed in the outer end of the tower body at the bottom end of the smoke inlet pipe from left to right, a material guide plate is obliquely fixed to the bottom end in the tower body from left to right, and the right portion of the top end of the material guide plate and the left portion of the bottom end of the opening are located on the same horizontal line. According to the utility model, through the cooperation of the motor II, the absorbent pipe and the spraying assembly, the absorbent is sprayed more uniformly, the capture efficiency of carbon dioxide in Fpso flue gas is improved, particulate matters are prevented from blocking the filler body through the filter plate, and the dispersion and passing rate of the flue gas are prevented from being influenced; and then through cooperation of a driving assembly, a first bevel gear, a connecting shaft, a first scraping plate, an electric telescopic rod and a second scraping plate, the particulate matter can be scraped off.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon dioxide recovery technical field especially relates to a kind of carbon dioxide recovery absorption tower for Fpso flue gas. BACKGROUND

[0002] FPSO is a kind of floating production storage and offloading device, which is a large offshore equipment used for offshore oil and gas field development. During production, FPSO will generate flue gas. The treatment and utilization of these flue gases are important aspects of improving energy efficiency and reducing environmental impact.

[0003] The absorption tower is the core part of the carbon dioxide recovery system. It is usually designed with a packed tower or a plate tower. The key is to choose the right absorbent. Common absorbents include amine solutions such as monoethanolamine (MEA) and diethanolamine (DEA). These chemicals can react with carbon dioxide to form stable compounds. In the absorption tower, flue gas containing carbon dioxide enters from the bottom, while absorbent is sprayed from the top. When carbon dioxide in the flue gas comes into contact with the absorbent, a chemical reaction occurs, and the carbon dioxide is captured by the absorbent and converted into carbonate or bicarbonate. After absorbing carbon dioxide, the absorbent's absorption capacity decreases. To restore its absorption capacity, it needs to be sent to a regeneration tower. In the regeneration tower, the absorbent releases carbon dioxide through heating or pressure reduction, restoring its absorption capacity. The carbon dioxide gas released from the regeneration tower is cooled and compressed to remove water and other impurities, resulting in high-purity carbon dioxide gas. This carbon dioxide can be stored or used in other industrial processes.

[0004] However, some existing carbon dioxide recovery absorption towers cannot make the Fpso flue gas in the tower evenly contact with the absorbent when spraying the absorbent, resulting in poor carbon dioxide recovery effect. In addition, the flue gas contains particulate matter, which rises with the flue gas when it moves upward, causing the packing in the absorption tower to be easily blocked by the particulate matter, affecting the dispersion rate of the flue gas through the packing. Therefore, a carbon dioxide recovery absorption tower for Fpso flue gas is proposed to solve the above problems. SUMMARY

[0005] To overcome the above shortcomings, the present utility model provides a carbon dioxide recovery absorption tower for Fpso flue gas, aiming to solve the problem of poor carbon dioxide recovery effect caused by the absorbent not being evenly contacted with the flue gas and the packing being blocked, affecting the dispersion rate of the flue gas through the packing.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of carbon dioxide recovery absorption tower for Fpso flue gas, including support frame, the middle part of the support frame is fixedly connected with tower body, the right side of the outer end bottom of the tower body is fixedly connected with flue inlet pipe, the outer end of the tower body is obliquely opened with opening from left to right at the bottom end of flue inlet pipe, the inside bottom end of the tower body is obliquely fixed with guide plate from left to right, the top right part of the guide plate is at the same horizontal line with the bottom left part of opening, the inside of the support frame is fixedly connected with filter plate at the top end of flue inlet pipe, the middle part of the filter plate is rotatably connected with connecting shaft, the top end of the connecting shaft is fixedly connected with bevel gear one at the top end of filter plate, the bottom end of the connecting shaft is fixedly connected with scraper one at the bottom end of filter plate, the front end of the tower body is provided with drive assembly, the rear end of the drive assembly is engagedly connected with bevel gear one, the drive assembly drives bevel gear one to rotate, the bottom end middle left part of the filter plate is opened with placing groove, the inside of the placing groove is provided with scraper two, the top end middle left part of the filter plate is fixedly connected with electric telescopic handle, the output end of the electric telescopic handle is fixedly connected with the top end of scraper two, the inside middle part of the tower body is fixedly connected with packing body, the inside middle upper end of the tower body is provided with spraying assembly, the middle part of the top end of the tower body is fixedly connected with absorbent pipe, the middle part of the absorbent pipe is communicated with spraying assembly.

[0007] As further description of the above technical solution: the drive assembly includes motor one, the output end of the motor one is fixedly connected with rotating shaft one, the rear end of the rotating shaft one is fixedly connected with bevel gear two.

[0008] As further description of the above technical solution: the bevel gear two is engagedly connected with bevel gear one, the bottom end of the motor one is fixedly connected with support seat, the rear end of the support seat is fixedly connected with the front end of the tower body.

[0009] As further description of the above technical solution: the spraying assembly includes connecting plate, the connecting plate is fixedly connected with the inner wall of the tower body, the middle part of the connecting plate is opened with communication groove, the bottom end of the connecting plate is opened with six rotating grooves at middle part and outside equal distance of communication groove, six the rotating grooves are rotatably connected with rotating block, the bottom end of the rotating block is fixedly connected with a plurality of spray heads one, the outer end of the rotating block is fixedly connected with external gear ring at the bottom end of the connecting plate, the outer end of the rotating block is fixedly connected with connecting ring at the bottom end of external gear ring, the outer end of the connecting ring is fixedly connected with a plurality of spray heads two at equal distance, the outer end of the connecting plate is opened with a plurality of air holes, the bottom end of the connecting plate is fixedly connected with a plurality of spray heads three at the air gap of air hole and external gear ring, the top of the rotating block on left side is fixedly connected with rotating shaft two.

[0010] As further description of the above technical solution: the top left part of the support frame is fixedly connected with motor two, the output end of the motor two is fixedly connected with the top of rotating shaft two.

[0011] As the further description of the above technical scheme: the five outer tooth rings on the outer side are all in meshing connection with the outer side of the middle outer tooth ring, and the outer tooth rings on the outer side are not in contact with each other.

[0012] As the further description of the above technical scheme: the bottom end of the absorbent pipe is fixedly connected with the top end of the connecting plate, and the bottom end of the absorbent pipe is located inside the communication groove.

[0013] As the further description of the above technical scheme: the top end right side of the tower body is fixedly connected with the gas outlet pipe, and the bottom end of the tower body is fixedly connected with the agent outlet pipe.

[0014] Beneficial effects

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the granular material at the bottom of the filter plate is scraped and synchronously moved by the driving assembly driving the scraper one to rotate, when the scraper one rotates to the right front, the electric telescopic rod is started to drive the scraper two to move downward, the granular material at the front of the scraper one is scraped to fall on the guide plate, and falls on the outside of the tower body through the opening, the filter plate prevents the granular material from passing through the filter hole of the filter plate and rising with the Fpso flue gas, solves the problem that the granular material blocks the filler body, and prevents the granular material from affecting the dispersion rate of flue gas through the filler body.

[0017] 2. In the utility model, the absorbent is transported to the spraying assembly by the absorbent pipe, and then the diluent is sprayed out by the spraying assembly, the spraying assembly can uniformly spray every corner above the filter plate in the tower body, so that the Fpso flue gas can uniformly contact the absorbent, and the carbon dioxide recovery effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional schematic view of a carbon dioxide recovery absorption tower for Fpso flue gas is provided for the utility model;

[0019] Figure 2 A front sectional view of a carbon dioxide recovery absorption tower for Fpso flue gas is provided for the utility model;

[0020] Figure 3 A relationship sectional view of an absorbent pipe and a connecting plate of a carbon dioxide recovery absorption tower for Fpso flue gas is provided for the utility model;

[0021] Figure 4 A ground surface turning over view of a connecting plate of a carbon dioxide recovery absorption tower for Fpso flue gas is provided for the utility model;

[0022] Figure 5The utility model provides a filter plate front view profile inclined view of carbon dioxide recovery absorption tower for Fpso flue gas.

[0023] Legend:

[0024] 1, support frame; 2, tower body; 3, smoke inlet pipe; 4, opening; 5, guide plate; 6, filter plate; 7, connecting shaft; 8, bevel gear one; 9, scraper one; 10, support seat; 11, motor one; 12, rotating shaft one; 13, bevel gear two; 14, placing groove; 15, scraper two; 16, electric telescopic rod; 17, filler body; 18, absorbent pipe; 19, connecting plate; 20, communication groove; 21, rotary groove; 22, rotating block; 23, spray head one; 24, connecting ring; 25, spray head two; 26, outer tooth ring; 27, motor two; 28, rotating shaft two; 29, spray head three; 30, air hole; 31, air outlet pipe; 32, agent outlet pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Reference Figure 1 , Figure 2 and Figure 5The utility model provides an embodiment: a kind of carbon dioxide recovery absorption tower for Fpso flue gas, including support frame 1, the middle part of support frame 1 is fixedly connected with tower body 2, the outer end bottom right side of tower body 2 is fixedly connected with smoke inlet pipe 3, the outer end of tower body 2 is obliquely opened with opening 4 from left to right at the bottom end of smoke inlet pipe 3, the inside bottom end of tower body 2 is obliquely fixed with guide plate 5 from left to right, the top end right part of guide plate 5 and the bottom end left part of opening 4 are located at the same horizontal line, the inside of support frame 1 is fixedly connected with filter plate 6 at the top end of smoke inlet pipe 3, the middle part of filter plate 6 is rotatably connected with connecting shaft 7, the top end of connecting shaft 7 is fixedly connected with bevel gear one 8 at the top end of filter plate 6, the bottom end of connecting shaft 7 is fixedly connected with scraper one 9 at the bottom end of filter plate 6, the front end of tower body 2 is provided with drive assembly, the rear end of drive assembly is engagedly connected with bevel gear one 8, drive assembly drives bevel gear one 8 to rotate, the bottom end middle left part of filter plate 6 is opened with placing groove 14, placing groove 14 is provided with scraper two 15 in the inside, the top end middle left part of filter plate 6 is fixedly connected with electric telescopic handle 16, the output end of electric telescopic handle 16 is fixedly connected with the top end of scraper two 15, the inside middle part of tower body 2 is fixedly connected with packing body 17, the inside middle upper end of tower body 2 is provided with spraying assembly, the middle part of tower body 2 is fixedly connected with absorbent pipe 18, and absorbent pipe 18 is communicated with the middle part of spraying assembly.

[0027] Fpso flue gas enters tower body 2 through smoke inlet pipe 3, filter plate 6 blocks particulate matter to move upward with Fpso and adhere on packing body 17, to prevent packing body 17 from being blocked, but particulate matter can block filter plate 6, so drive assembly makes bevel gear one 8 rotate, bevel gear one 8 rotates and drives connecting shaft 7 and scraper one 9 to rotate synchronously, and the particulate matter at the bottom of filter plate 6 is scraped and moved synchronously, when scraper one 9 rotates to the positive left, start electric telescopic handle 16, and make scraper two 15 move down, and the particulate matter in the front of scraper one 9 is scraped and falls on guide plate 5, because of the inclination of guide plate 5, particulate matter slides to the right and falls in the outside of tower body 2 through opening 4, absorbent pipe 18 transports absorbent to spraying assembly, packing body 17 makes Fpso flue gas disperse evenly, and spraying assembly sprays diluent evenly, increases the contact area of diluent and Fpso flue gas, improves carbon dioxide capture efficiency.

[0028] Refer to Figure 2 And Figure 5 Drive assembly includes motor one 11, the output end of motor one 11 is fixedly connected with shaft one 12, the rear end of shaft one 12 is fixedly connected with bevel gear two 13, and bevel gear two 13 is engagedly connected with bevel gear one 8, and the bottom end of motor one 11 is fixedly connected with support seat 10, and the rear end of support seat 10 is fixedly connected with the front end of tower body 2.

[0029] The starting motor 11 drives the rotating shaft 12 and the bevel gear 13 to rotate. Since the bevel gear 13 and the bevel gear 8 are engaged, when the bevel gear 13 rotates, the bevel gear 8 rotates synchronously. The support seat 10 provides support for the motor 11.

[0030] Referring to Figures 2-4 The spraying assembly comprises a connecting plate 19 fixedly connected with the inner wall of the tower body 2. A communication groove 20 is formed in the middle of the connecting plate 19. Six rotating grooves 21 are formed in the bottom end of the connecting plate 19 at equal distances from the middle and the outer side of the communication groove 20. Six rotating blocks 22 are rotatably connected with the six rotating grooves 21. A plurality of first nozzles 23 are fixedly connected with the bottom end of each rotating block 22. An external gear ring 26 is fixedly connected with the outer end of each rotating block 22 at the bottom end of the connecting plate 19. A connecting ring 24 is fixedly connected with the outer end of each rotating block 22 at the bottom end of the external gear ring 26. A plurality of second nozzles 25 are fixedly connected with the outer end of each connecting ring 24 at equal distances. A plurality of air holes 30 are formed in the outer end of the connecting plate 19. A plurality of third nozzles 29 are fixedly connected with the bottom end of the connecting plate 19 at the gap between the air holes 30 and the external gear ring 26. The top of the left rotating block 22 is fixedly connected with a rotating shaft 28.

[0031] The absorbent flows into the six rotating blocks 22 through the communication groove 20 and is sprayed out through the third nozzles 29. The absorbent in the rotating blocks 22 flows into the connecting rings 24 and is sprayed out through the first nozzles 23. The absorbent in the connecting rings 24 is sprayed out through the second nozzles 25. When the rotating shaft 28 rotates, it drives the left rotating block 22 to rotate. Due to the rotating force, the absorbent sprayed out of the first nozzles 23 and the second nozzles 25 is distributed everywhere.

[0032] Referring to Figures 2-4 The top left part of the support frame 1 is fixedly connected with a motor 27. The output end of the motor 27 is fixedly connected with the top of the rotating shaft 28. The five external gear rings 26 on the outer side are engaged with the outer side of the middle external gear ring 26. The five external gear rings 26 on the outer side are not in contact with each other. The bottom end of the absorbent pipe 18 is fixedly connected with the top end of the connecting plate 19. The bottom end of the absorbent pipe 18 is located in the communication groove 20.

[0033] The motor 27 is started to drive the rotating shaft 28 to rotate. When the rotating shaft 28 rotates, it drives the left rotating block 22 to rotate in the same side rotating groove 21. In this way, the left external gear ring 26 is rotated. Since the left external gear ring 26 is engaged with the middle external gear ring 26, and the middle external gear ring 26 is engaged with the external gear rings 26 on the outer side, the other five external gear rings 26 are rotated, thereby driving the other five rotating blocks 22 to rotate. The absorbent pipe 18 releases absorbent into the communication groove 20.

[0034] Referring to Figure 1 and Figure 2The top right side of the tower body 2 is fixedly connected with an air outlet pipe 31, and the bottom of the tower body 2 is fixedly connected with an agent outlet pipe 32.

[0035] The end of the agent outlet pipe 32 is connected to the regeneration tower, the Fpso flue gas capturing carbon dioxide is discharged through the absorbent pipe 18, and the absorbent capturing carbon dioxide flows into the regeneration tower through the agent outlet pipe 32 for next processing.

[0036] Working principle: first, start the motor 11, drive the scraper 9 to rotate, and release the absorbent into the connecting plate 19 through the absorbent pipe 18, start the motor 27, make the six rotating blocks 22 and the connecting ring 24 rotate synchronously, the cooperation of the spray head 23, the spray head 25 and the spray head 29 makes the absorbent spray more uniform, then make the Fpso flue gas enter the tower body 2 through the flue gas inlet pipe 3, the Fpso flue gas will rise, the filter plate 6 prevents the particulate in the Fpso flue gas from passing through, but allows the flue gas and the liquid to pass through, and the scraper 9 synchronously moves the particulate at the bottom of the filter plate 6, when the scraper 9 rotates to the right, start the electric telescopic rod 16, make the scraper 15 move down, scrape the particulate in front of the scraper 9 and fall on the guide plate 5, then fall on the outside of the tower body 2 through the opening 4, when the flue gas is dispersed uniformly through the filler body 17 and enters the upper middle of the tower body 2, at this time, the flue gas directly contacts the absorbent, which is convenient for capturing carbon dioxide in the flue gas, and the absorbent after capturing carbon dioxide falls down and flows into the regeneration tower through the agent outlet pipe 32 for processing.

[0037] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A carbon dioxide recovery absorption column for Fpso flue gas comprising a support frame (1), characterized in that: The middle part of the support frame (1) is fixedly connected with a tower body (2), the outer end bottom right side of the tower body (2) is fixedly connected with a smoke inlet pipe (3), the outer end of the tower body (2) is inclinedly provided with an opening (4) from left to right at the bottom end of the smoke inlet pipe (3), the inner bottom end of the tower body (2) is fixedly provided with a guide plate (5) from left to right, the top end right part of the guide plate (5) and the bottom end left part of the opening (4) are located on the same horizontal line, the inner part of the support frame (1) is fixedly connected with a filter plate (6) at the top end of the smoke inlet pipe (3), the middle part of the filter plate (6) is rotatably connected with a connecting shaft (7), the top end of the connecting shaft (7) is fixedly connected with a bevel gear one (8) at the top end of the filter plate (6), the bottom end of the connecting shaft (7) is fixedly connected with a scraper one (9) at the bottom end of the filter plate (6), the front end of the tower body (2) is provided with a driving assembly, the rear end of the driving assembly is meshingly connected with the bevel gear one (8), the driving assembly drives the bevel gear one (8) to rotate, the bottom end middle left part of the filter plate (6) is provided with a placing groove (14), the inner part of the placing groove (14) is provided with a scraper two (15), the top end middle left part of the filter plate (6) is fixedly connected with an electric telescopic rod (16), the output end of the electric telescopic rod (16) is fixedly connected with the top end of the scraper two (15), the inner side middle part of the tower body (2) is fixedly connected with a filler body (17), the inner part middle upper end of the tower body (2) is provided with a spraying assembly, the top end middle part of the tower body (2) is fixedly connected with an absorbent pipe (18), the absorbent pipe (18) is in communication with the middle part of the spraying assembly.

2. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 1, characterized in that: The driving assembly comprises a motor one (11), the output end of the motor one (11) is fixedly connected with a rotating shaft one (12), the rear end of the rotating shaft one (12) is fixedly connected with a bevel gear two (13).

3. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 2, characterized in that: The bevel gear two (13) is meshingly connected with the bevel gear one (8), the bottom end of the motor one (11) is fixedly connected with a support seat (10), the rear end of the support seat (10) is fixedly connected with the front end of the tower body (2).

4. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 1, characterized in that: The spraying assembly comprises a connecting plate (19) fixedly connected with the inner wall of the tower body (2), a communication groove (20) is formed in the middle part of the connecting plate (19), six rotating grooves (21) are formed in the bottom end of the connecting plate (19) at equal distances from the middle part and the outer side of the communication groove (20), six rotating grooves (21) are all rotationally connected with rotating blocks (22), the bottom end of the rotating block (22) is all fixedly connected with a plurality of first spray heads (23), the outer end of the rotating block (22) is all fixedly connected with an outer gear ring (26) at the bottom end of the connecting plate (19), the outer end of the rotating block (22) is all fixedly connected with a connecting ring (24) at the bottom end of the outer gear ring (26), the outer end of the connecting ring (24) is all fixedly connected with a plurality of second spray heads (25) at equal distances, a plurality of air holes (30) are formed in the outer end of the connecting plate (19), a plurality of third spray heads (29) are fixedly connected with the air holes (30) and the gap between the outer gear ring (26) and the bottom end of the connecting plate (19), and the top part of the left rotating block (22) is fixedly connected with a rotating shaft two (28).

5. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 4, characterized in that: The top end left part of the supporting frame (1) is fixedly connected with a motor two (27), and the output end of the motor two (27) is fixedly connected with the top part of the rotating shaft two (28).

6. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 4, characterized in that: The outer five outer gear rings (26) are all meshingly connected with the outer side of the middle outer gear ring (26), and the outer five outer gear rings (26) are all not in contact with each other.

7. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 4, characterized by: The bottom end of the absorbent pipe (18) is fixedly connected with the top end of the connecting plate (19), and the bottom end of the absorbent pipe (18) is located in the communication groove (20).

8. A carbon dioxide recovery absorption column for Fpso flue gas according to claim 1, characterized by: The top end right part of the tower body (2) is fixedly connected with an air outlet pipe (31), and the bottom end of the tower body (2) is fixedly connected with an agent outlet pipe (32).

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