Integrated system for ship carbon capture

Abstract

The utility model discloses an integrated system for ship carbon capture. The integrated system comprises a flue gas collecting pipe, a waste gas boiler, a first flue gas pipe, a washing tower, a second flue gas pipe, a fan, a third flue gas pipe and an absorption tower which are connected in sequence, under the action of the fan, flue gas sequentially enters the flue gas collecting pipe, the waste gas boiler, the washing tower, the second flue gas pipe and the absorption tower and then is exhausted into the atmosphere; according to the principle of the carbon capture system, smoke exhausted by main and auxiliary machines of a ship, a boiler and an incinerator sequentially enters a smoke collecting pipe, a waste gas boiler, a washing tower, an absorption tower and a condenser under the action of a fan and then is exhausted into the atmosphere. According to the utility model, a ship-machine-pipe-electricity outfitting integrated design is adopted, and a new chimney structural beam, an equipment base, a pipe bracket, a main cable bracket and a maintenance platform channel are arranged together. The structure of the new chimney is optimized, the space is reasonably utilized, the workload and the material amount are reduced, the embarrassment that construction cannot be conducted in a narrow space is avoided, and the problem that a carbon capture system is installed in a limited space is solved.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, specifically to an integrated system for capturing carbon in ships. Background Technology

[0002] With increasing calls for net-zero CO2 emissions from ships and the implementation of various policies and regulations, the development of new fuels to replace carbon is still a long way off. Therefore, using traditional clean fuels (such as LNG) in conjunction with carbon capture systems (CCS) to achieve carbon reduction in ships remains a primary option for existing vessels. While CCS systems are well-established on land, the limited space on ships presents a challenge: how to scientifically arrange the various components of a CCS system within that confined space. Utility Model Content

[0003] The present invention aims to overcome at least one of the defects of the prior art and provide an integrated system for carbon capture on ships, so as to realize the integrated arrangement of carbon capture devices in a limited space on a ship, thus solving the problem of installing carbon capture equipment in a limited space.

[0004] This invention provides an integrated carbon capture system for ships, comprising a flue gas manifold, an exhaust boiler, a first flue gas pipe, a scrubbing tower, a second flue gas pipe, a fan, a third flue gas pipe, and an absorption tower connected in sequence. Under the action of the fan, the flue gas sequentially enters the flue gas manifold, exhaust boiler, scrubbing tower, second flue gas pipe, and absorption tower before being discharged into the atmosphere. The principle of the carbon capture system is to guide the flue gas discharged from the ship's main and auxiliary engines, boiler, and incinerator through the fan into the flue gas manifold, exhaust boiler, scrubbing tower, absorption tower, and condenser before being discharged into the atmosphere. In this process, the high-temperature flue gas is treated by the exhaust boiler and absorption tower, resulting in a significant temperature reduction, and the purified flue gas enters the absorption tower. CO2 gas is absorbed by an ethanolamine solution in the absorption tower, forming a rich amine solution; that is, the ethanolamine solution that has absorbed CO2 gas is called a rich amine solution. Under the action of the rich solution pump, the rich amine solution enters the rich-lean-rich solution heat exchanger through the rich solution pipe and then enters the desorption tower. The rich amine solution is heated in the desorption tower to release CO2 gas and obtain a lean amine solution. That is, the ethanolamine solution obtained after releasing CO2 gas is called a lean amine solution. The CO2 gas capture is completed and sent to the CO2 gas liquefaction and storage system through the carbon dioxide delivery pipe.

[0005] Furthermore, the vessel is provided with a first deck, a second deck, a third deck, a fourth deck, a fifth deck, and a sixth deck from bottom to top; the second flue gas pipe passes through the fifth deck and is fixed to the fifth deck; the third flue gas pipe hangs upside down on the opposite side of the sixth deck and passes through the fifth deck, and is fixed by relying on the fifth and sixth decks; the exhaust gas boiler and the scrubbing tower are installed on the starboard side of the third deck; one end of the exhaust gas boiler is connected to the flue gas collection pipe, and the other end is connected to the scrubbing tower through the first flue gas pipe; the other end of the scrubbing tower is connected to the fan through the second flue gas pipe; the fan is installed on the fifth deck, and the other end is connected to the absorption tower through the third flue gas pipe; the first flue gas pipe hangs upside down below the fifth deck, and the second flue gas pipe passes through the fifth deck and is fixed; the absorption tower is installed on the port side of the fourth deck.

[0006] Furthermore, the integrated carbon capture system for ships of this utility model also includes a first condenser located at the top of the absorption tower, with an exhaust pipe connected above the first condenser, the exhaust pipe passing through the sixth deck and fixed to the sixth deck.

[0007] Furthermore, the integrated carbon capture system for ships of this invention also includes a desorption tower, which is connected to the absorption tower via a rich liquid pipe.

[0008] Furthermore, the desorption tower and the absorption tower are installed on the same deck.

[0009] Furthermore, a second condenser is connected above the desorption tower.

[0010] Furthermore, the integrated carbon capture system for ships of this utility model also includes a main cable tray, and a stern deck is provided below the first deck; the main cable tray is arranged upwards from the stern deck to the sixth deck; and cable trays are arranged on each deck.

[0011] Furthermore, the integrated carbon capture system for ships of this utility model also includes a first heat exchanger and a lean-rich liquid heat exchanger disposed between the first deck and the second deck; a lean liquid pump is connected to one side of the first heat exchanger; a first rich liquid pump is connected to one side of the lean-rich liquid heat exchanger; the first heat exchanger is connected to the absorption tower; and the lean-rich liquid heat exchanger is connected to the desorption tower.

[0012] Furthermore, a second rich liquid pump is provided between the second deck and the third deck, and the second rich liquid pump is located between the absorption tower and the first rich liquid pump.

[0013] Furthermore, the integrated carbon capture system for ships of this utility model also includes a flue gas manifold base, an exhaust gas boiler base, multiple exhaust pipe supports, a scrubbing tower base, a fan base, an absorption tower base, multiple condenser bases, multiple pump bases, multiple heat exchanger bases, and a desorption tower base; the flue gas manifold base is used to fix the flue gas manifold, and the flue gas manifold base is integral with the structural beam of the second deck; the exhaust gas boiler base and the scrubbing tower base are respectively used to fix the exhaust gas boiler and the scrubbing tower, and the exhaust gas boiler base... The washing tower base is integrally formed with the structural beam of the third deck; the absorption tower base and desorption tower base are used to install the absorption tower and desorption tower respectively, and the absorption tower base and desorption tower base are integrally formed with the structural beam of the fourth deck; the fan base is used to fix the fan, and the fan base is integrally formed with the structural beam of the fourth deck; the first flue gas pipe, the second flue gas pipe and the third flue gas pipe are fixed by the exhaust pipe bracket respectively; the first condenser and the second condenser are fixed by the condenser base.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Existing technology involves designing the new chimney structure first, with the structural beam strength only serving the new chimney and neglecting equipment load. The load requirements of the equipment base and the reinforcement of the deck's reverse side are checked separately, without forming a systematic approach. This significantly increases workload and material requirements, making structural and equipment installation impossible in confined spaces. This invention adopts an integrated design for ship machinery, piping, and electrical outfitting, arranging the new chimney structural beams together with the equipment base, pipe supports, main cable trays, and maintenance platform access. This optimizes the new chimney structure, makes rational use of space, reduces workload and material requirements, avoids the predicament of being unable to construct in confined spaces, and solves the problem of installing a carbon capture system in limited spaces.

[0016] This invention enables the installation of mechanical, electrical, and outfitting equipment, pipelines, cable trays, and platform access within the limited space of a ship. It successfully deploys all equipment of the carbon capture system on the ship, integrates the carbon capture system schematic diagram into the hull structure, and realizes the selection and layout of ship carbon capture equipment.

[0017] This invention is applicable to all platforms, ships and marine structures. Attached Figure Description

[0018] Figure 1 Layout diagram of an integrated carbon capture system for ships.

[0019] Figure 2 A simplified structural diagram of an integrated carbon capture system for ships. Detailed Implementation

[0020] The accompanying drawings illustrate the technical solutions of this utility model in more detail. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The described embodiments are only some, not all, embodiments of this utility model. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0023] Example

[0024] Combination Figures 1-2As shown, the new chimney of this utility model is located on the stern deck 20 of a ship. This room is independently designed considering the complex ship shape and the layout of the carbon capture system, integrating ship engine, pipe, and electrical outfitting. The new chimney is supported by columns 37 on the stern deck 20. The upper end of the columns 37 is connected to the structural beam of the new chimney, and the lower end is connected to the stern deck 20. The reverse side of the stern deck 20 is reinforced with T-beams. Each deck of the new chimney is connected to the rear wall of the old chimney by horizontal trusses. The structural beam of the room is integrated with the flue gas collection pipe base, exhaust boiler base 27, flue gas pipe support, scrubbing tower base 29, fan base 30, absorption tower base 31, condenser base 32, pump base 33, heat exchanger base, desorption tower base 35, and cable tray 36 of the carbon capture system. The straight ladder and maintenance platform are compactly arranged according to equipment requirements, saving space. The platform structure beam is not only the main structure of the new chimney, but also part of the carbon capture system equipment base. The structure is designed as an integrated unit, which arranges the carbon capture system in a limited space and provides support for all equipment, realizing the installation, operation and maintenance of the equipment.

[0025] The integrated carbon capture system is arranged inside the new chimney according to the flue gas flow sequence. Flue gas from the ship's main and auxiliary engines, boilers, and incinerator is introduced from the rear wall of the original chimney into the flue gas manifold 1, which is located on the second deck 10, with its base integral with the structural beams of the second deck 10. Under the action of the fan 6, the flue gas sequentially enters the flue gas manifold 1, the waste gas boiler 2, the scrubbing tower 4, the absorption tower 8, and the condenser before being discharged into the atmosphere.

[0026] The fan 6 is installed on the fifth deck 13, and the fan base 30 is integral with the structural beam of the fifth deck 13. The fan 6 is connected to the scrubbing tower 4 at one end and the absorption tower 8 at the other end via a flue gas pipe. The second flue gas pipe 5, connecting the fan 6 to the scrubbing tower 4, passes through the fifth deck 13 and is supported by a base designed on the structural beam on the opposite side of the fifth deck 13. The third flue gas pipe 7, connecting the fan 6 to the absorption tower 8, hangs upside down on the opposite side of the sixth deck 14 and passes through the fifth deck 13, and is fixed by a support designed on the structural beams on the opposite sides of both the fifth and sixth decks 14.

[0027] The exhaust gas boiler 2 and scrubber 4 are installed on the third deck 11. The exhaust gas boiler base 27 and the scrubber base 29 are integral with the structural beams of the third deck 11 and extend downwards to the structural beams of the second deck 10 via columns 37. The main function of the exhaust gas boiler 2 and scrubber 4 is to cool the flue gas, and they are arranged as compactly as possible. The exhaust gas boiler 2 and scrubber 4 are arranged on the starboard or port hull of the ship and connected to the flue gas duct. The third flue gas duct 7 is suspended upside down below the fifth deck 13 and fixed by a support structure designed for the structural beams of the fifth deck 13.

[0028] The absorption tower 8 and desorption tower 17 are installed on the fourth deck 12, and the absorption tower base 31 and the desorption tower base 35 are integral with the structural beams of the fourth deck 12. The operating temperature of the absorption tower 8 is much lower than that of the desorption tower 17, and its installation position is as far away as possible. The desorption tower 17 is arranged on the port hull, and the absorption tower 8 is arranged on the starboard side. The absorption tower 8 and the desorption tower 17 are connected by a rich liquid pipe.

[0029] The main cable tray 19 is arranged along the sidewall of the new chimney from the stern deck 20 to the sixth deck 14, and cable trays 36 are arranged on each deck to serve the equipment on that deck.

[0030] The condenser, first rich liquid pump 24, second rich liquid pump 25, lean liquid pump 23, and heat exchanger are installed in different positions according to the lean liquid pipe and rich liquid pipe routes, respectively, to provide auxiliary support for the entire carbon capture system and complete carbon capture. Maintenance platform access is arranged on each deck according to equipment requirements. Each deck is paved with steel grating, and guardrails are installed at the openings of each platform access to ensure operator safety.

[0031] A new funnel is constructed around the existing funnel on the stern deck 20 of the ship. The new funnel is supported by columns 37 on the stern deck 20. The upper ends of the columns 37 connect to the structural beams of the new funnel, and the lower ends connect to the stern deck 20. The reverse side of the stern deck 20 is reinforced with T-beams. Each deck of the new funnel is connected to the aft wall of the old funnel by horizontal trusses. The T-beam structure of the new funnel is designed according to the location of the carbon capture system equipment base. To ensure that the T-beam structure can bear the loads of the equipment and the new funnel, the transverse and longitudinal T-beam structural strengths are designed to maximize the required loads. The bulkheads of the ship's compartments, together with the transverse and longitudinal T-beams of the deck, form a frame. After completing the frame design, information on the deck and bulkhead plate thicknesses, as well as the buttress material information, is supplemented. The actual ship project's new funnel structure design is as follows: Figure 1 and Figure 2As shown. The first deck 9 has transverse and longitudinal structural dimensions of T750×350×14×16, made of AH36 grade steel, with a plate thickness of 8mm. The buttresses are made of BP200×10 profile, all made of Q235A steel. The bulkheads between the first deck 9 and the third deck 11 have transverse and longitudinal structural dimensions of T500×300×14×16, made of AH36 grade steel, with a bulkhead thickness of 7mm. The buttresses are made of BP200×10 profile, all made of Q235A steel. From the second deck 10 to the sixth deck 14, each deck has a transverse and longitudinal structural dimension of H500×300×14×16, and a horizontal girder structure of T800x350x14x16. The space between the horizontal girder is paved with steel grating. The sixth deck 14 has a plate thickness of 6mm, and all materials are made of Q235A grade steel. The transverse and longitudinal structural dimensions of the bulkheads between the third deck 11 and the sixth deck 14 are both T350×200×12×14, with a bulkhead plate thickness of 6mm and a BP160×7 buttress material, all made of Q235A.

[0032] The flue gas pipes are arranged inside the new chimney according to the direction of the flue gas flow, such as... Figure 1 As shown. The flue gas discharged from the ship's main and auxiliary engines, boilers and incinerators is introduced into the flue gas collection pipe 1 from the rear wall of the original chimney. The flue gas collection pipe 1 is arranged on the second deck 10, close to the starboard side, directly below the exhaust gas boiler 2. The exhaust gas boiler base 27 is integrated with the structural beam of the second deck 10.

[0033] Under the action of fan 6, the flue gas sequentially enters the waste gas boiler 2, scrubbing tower 4, absorption tower 8, and first condenser 15 before being discharged into the atmosphere. Figure 1 As shown. The fan 6 is installed on the fifth deck 13, and the fan base 30 is integral with the T-beam of the fifth deck 13. One end of the fan 6 is connected to the scrubbing tower 4 via the second flue gas pipe 5, and the other end is connected to the absorption tower 8 via the third flue gas pipe 7. The second flue gas pipe 5 passes through the fifth deck 13 and is supported by a structural beam on the opposite side of the fifth deck 13. The third flue gas pipe 7 hangs upside down on the opposite side of the sixth deck 14 and passes through the fifth deck 13, and is fixed by a support structure designed on the opposite sides of the fifth deck 13 and the sixth deck 14.

[0034] The main function of the waste gas boiler 2 and the scrubbing tower 4 is to cool the flue gas. They are connected by the first flue gas pipe 3. The two devices are compactly installed on the starboard side of the third deck 11. The base is integral with the structural beams of the third deck 11 and extends downwards to the structural beams of the second deck 10. Figure 1 and Figure 2As shown. One end of the waste gas boiler 2 is connected to the flue gas collection pipe 1, and the other end is connected to the scrubbing tower 4 through the first flue gas pipe 3. The other end of the scrubbing tower 4 is connected to the fan 6 through the second flue gas pipe 5. The first flue gas pipe 3 hangs upside down under the fifth deck 13, and the second flue gas pipe 5 passes through the fifth deck 13. The supports for the two flue gas pipes are integrated with the T-beam of the fifth deck 13.

[0035] Since the operating temperature of absorption tower 8 is much lower than that of desorption tower 17, its installation location should be as far away as possible. Figure 1 and Figure 2 As shown. The absorption tower 8 is installed on the port side of the fourth deck 12, and the desorption tower 17 is installed on the starboard side of the fourth deck 12. They are connected by a rich liquid pipe. The absorption tower base 31 and the desorption tower base 35 are integral with the T-beam of the fourth deck 12.

[0036] In this utility model, the main cable tray 19 is arranged along the left chord sidewall of the new chimney from the stern deck 20 to the sixth deck 14, and cable trays 36 are arranged on each deck to serve the equipment on that deck, such as... Figure 1 As shown.

[0037] The first condenser 15 is installed at the top of the absorption tower 8. The first rich liquid pump 24, the lean and rich liquid heat exchanger 22, the second condenser 18, the second rich liquid pump 25, the first heat exchanger 21, the lean liquid pump 23, and the second heat exchanger are installed in different positions according to the direction of the lean liquid pipe and the rich liquid pipe, respectively, to provide auxiliary support for the entire carbon capture system and complete carbon capture and separation. The separated pure CO2 gas is sent to the CO2 gas liquefaction and storage system through the carbon dioxide delivery pipe, such as... Figure 1 As shown.

[0038] Maintenance platform access is arranged on each deck according to equipment requirements. The decks are paved with steel grating, and guardrails are installed at the openings of each platform access to ensure operator safety. Figure 2 As shown.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of this utility model. Those skilled in the art can also make other changes within the spirit of this utility model for its design, as long as they do not deviate from the technical effect of this utility model. These changes made according to the spirit of this utility model should all be included within the scope of protection claimed by this utility model.

Claims

1. An integrated system for carbon capture for a marine vessel, characterized in that, It comprises sequentially connected flue gas collecting pipe (1), waste gas boiler (2), first flue gas pipe (3), washing tower (4), second flue gas pipe (5), fan (6), third flue gas pipe (7), absorption tower (8); The flue gas enters flue gas collecting pipe (1), waste gas boiler (2), washing tower (4), second flue gas pipe (5) and absorption tower (8) in sequence under the action of fan (6) and is discharged into the atmosphere; the ship is sequentially provided with first deck (9), second deck (10), third deck (11), fourth deck (12), fifth deck (13) and sixth deck (14) from bottom to top; Second flue gas pipe (5) passes through fifth deck (13) and is fixed with fifth deck (13); Third flue gas pipe (7) is hung upside down on the reverse side of sixth deck (14) and passes through fifth deck (13) and is fixed relying on fifth deck (13) and sixth deck (14); Waste gas boiler (2) and washing tower (4) are installed on the right side of third deck (11); one end of waste gas boiler (2) is connected with flue gas collecting pipe (1), and the other end is connected with washing tower (4) through first flue gas pipe (3); the other end of washing tower (4) is connected with fan (6) through second flue gas pipe (5); Fan (6) is installed on fifth deck (13) and is connected with absorption tower (8) through third flue gas pipe (7) on the other end; First flue gas pipe (3) is hung upside down below fifth deck (13), and second flue gas pipe (5) passes through fifth deck (13) and is fixed; Absorption tower (8) is installed on the left side of fourth deck (12).

2. The integrated system for carbon capture for a marine vessel of claim 1, wherein, It further comprises first condenser (15) arranged at the top of absorption tower (8), and exhaust pipe (16) is connected above first condenser (15), exhaust pipe (16) passes through sixth deck (14) and is fixed on sixth deck (14).

3. The integrated system for carbon capture for a marine vessel of claim 2, wherein, It further comprises desorption tower (17) connected with absorption tower (8) through rich liquid pipe.

4. The ship integrated carbon capture system of claim 3, wherein, Desorption tower (17) and absorption tower (8) are installed on the same deck.

5. The integrated system for carbon capture for a marine vessel of claim 3, wherein, Second condenser (18) is further connected above desorption tower (17).

6. The ship integrated carbon capture system of claim 3, wherein, It further comprises main cable bracket (19), and the lower side of first deck (9) is further provided with stern deck (20); main cable bracket (19) is arranged from stern deck (20) to sixth deck (14); and cable bracket (36) is arranged on each layer.

7. The integrated system for carbon capture for a marine vessel of claim 3, wherein, It further comprises first heat exchanger (21) and lean-rich liquid heat exchanger (22) arranged between first deck (9) and second deck (10); one side of first heat exchanger (21) is connected with lean liquid pump (23); one side of lean-rich liquid heat exchanger (22) is connected with first rich liquid pump (24); first heat exchanger (21) is connected with absorption tower (8); and lean-rich liquid heat exchanger (22) is connected with desorption tower (17).

8. The integrated system for carbon capture for a marine vessel of claim 2, wherein, A second rich liquid pump (25) is further arranged between the second deck (10) and the third deck (11), and the second rich liquid pump (25) is arranged between the absorption tower (8) and the first rich liquid pump (24).

9. The ship's integrated carbon capture system of claim 2, wherein, The flue gas header base, the waste gas boiler base (27), a plurality of flue gas pipe supports, the washing tower base (29), the fan base (30), the absorption tower base (31), a plurality of condenser bases (32), a plurality of pump bases (33), a plurality of heat exchanger bases, and the desorption tower base (35) are further included; The flue gas header base is used for fixing the flue gas header (1), and the flue gas header base is integrated with the structural beam of the second deck (10); The waste gas boiler base (27) and the washing tower base (29) are respectively used for fixing the waste gas boiler (2) and the washing tower (4), and the waste gas boiler base (27) and the washing tower base (29) are respectively integrated with the structural beam of the third deck (11); The absorption tower base (31) and the desorption tower base (35) are respectively used for mounting the absorption tower (8) and the desorption tower (17), and the absorption tower base (31) and the desorption tower base (35) are respectively integrated with the structural beam of the fourth deck (12); The fan base (30) is used for fixing the fan (6), and the fan base (30) is integrated with the structural beam of the fourth deck (12); The first flue gas pipe (3), the second flue gas pipe (5), and the third flue gas pipe (7) are respectively fixed by the flue gas pipe supports; The first condenser (15) and the second condenser (18) are fixed by the condenser bases (32).

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