Shipborne greenhouse gas emission reduction equipment
By designing adaptive connectors and additional structures on the hull, the stability problem of the ship-borne greenhouse gas capture equipment caused by swaying in the sailing environment was solved, and the stable operation of the equipment and the efficient capture of carbon dioxide were achieved.
Patent Information
- Application Number
- CN202422471847.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In a sailing environment, the tilt and sway of the ship's hull caused by wind and waves affect the stability of the reaction tower of the ship-borne greenhouse gas capture equipment, resulting in the equipment being unable to operate effectively.
The reaction tank is connected to the hull through connectors, and the first and second states are designed to adapt to different navigation conditions. Combined with structures such as the tower side rod, protective ring and base, it ensures that the reaction tank remains upright under different swing conditions to prevent violent shaking and leakage.
It effectively stabilizes the position of the reaction tank on the hull, avoids the decrease in mass transfer capacity and solvent leakage caused by the equipment's swing, and ensures the stable operation of the equipment and the effective capture of carbon dioxide.
Smart Images
Figure CN223439516U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tail gas treatment technical field especially relates to a shipborne greenhouse gas emission reduction equipment. BACKGROUND
[0002] Shipborne carbon capture equipment becomes the decarburization technology that shipping industry pays close attention to. Carbon capture plant similar to land is used on the ship to capture carbon dioxide by solvent absorption, needs an absorption tower to absorb carbon dioxide in tail gas, and then regenerates the solvent rich liquid by using a desorption tower to separate out carbon dioxide to realize solvent circulation, and the separated carbon dioxide needs to be compressed and cooled into liquid carbon dioxide and stored in the special storage tank on the ship. The advantage of ship carbon capture is that it does not need to modify the engine, is not limited by fuel type, does not need to change the ship fuel combustion mode, and can be used as a terminal decarburization technology flexibly used on various ship types and routes.
[0003] From the current technology, the shipborne carbon dioxide capture technology process has been widely recognized, but it is extremely challenging to build chemical equipment in the limited space of the ship. Since carbon dioxide capture needs solvent to absorb and desorb carbon dioxide in tail gas, the solvent is volatile and corrosive, therefore, unlike the land carbon capture equipment, the sea environment needs to be considered during installation and construction to ensure that the equipment has the ability to prevent tilting and swinging under wind and wave conditions. SUMMARY
[0004] The utility model aims at least to solve one of the technical problems existing in the prior art. To this end, the utility model provides a shipborne greenhouse gas emission reduction equipment, which can effectively solve the problem of the influence of ship tilting and swinging caused by wind and waves in the marine environment on the reaction tower.
[0005] The shipborne greenhouse gas emission reduction equipment according to the first aspect embodiment of the utility model is used for absorbing greenhouse gas in tail gas on the ship body, and includes: a reaction tank, the reaction tank is an absorption tower or a desorption tower, the absorption tower is used for capturing greenhouse gas in tail gas by solvent, and the desorption tower is used for releasing greenhouse gas in solvent; a connecting piece, the first end of the connecting piece is connected to the top of the reaction tank, the second end of the connecting piece is connected to the ship body, so that the reaction tank swings relative to the ship body, and the connecting piece includes a first state and a second state; when the connecting piece is in the first state, the bottom of the reaction tank abuts on the ship body; when the connecting piece is in the second state, the bottom of the reaction tank is suspended, so that the reaction tank remains vertical.
[0006] The shipborne greenhouse gas emission reduction equipment has the following beneficial effects: the reaction tank is connected to the ship body through the connecting piece; in the first state, the ship body is in a relatively stable state, the bottom of the reaction tank abuts against the ship body, the reaction tank can slightly shake, and the swinging range of the top of the reaction tank is limited through the connecting piece, so that the reaction tank is in a relatively stable state; in the second state, the ship body is in a relatively bumpy state, the connecting piece is tightened at this time, so that the top of the reaction tank is hung on the ship body, and the bottom of the reaction tank is suspended, so that the reaction tank does not shake with the ship body under the action of gravity, but remains vertical.
[0007] According to some embodiments of the utility model, still include tower side pole body, tower side pole body fixed setting in the ship body, connecting piece's second end is connected in tower side pole body, connecting piece's first end is hung in the top of reaction tank.
[0008] According to some embodiments of the utility model, still include protection ring, protection ring fixed setting in tower side pole body, protection ring cover in reaction tank, protection ring with reaction tank between have interval, to limit the swing amplitude of reaction tank.
[0009] According to some embodiments of the utility model, including multiple protection rings, when the reaction tank remains vertical, multiple protection rings are spaced apart along the reaction tank.
[0010] According to some embodiments of the utility model, still include base, the recess is set up in base, when connecting piece is in first state, the bottom of reaction tank is set in recess.
[0011] According to some embodiments of the utility model, the recess is a semispherical recess, the bottom of the reaction tank has a curved surface, and the curved surface is rotationally fitted with the recess to swing the reaction tank.
[0012] According to some embodiments of the utility model, the connecting piece is a non-elastic chain.
[0013] According to some embodiments of the utility model, further including a winding and unwinding device, the connecting piece is a flexible chain, the second end of the chain is provided on the winding and unwinding device, and the winding and unwinding device is used to control the length of the chain to switch the connecting piece between the first state and the second state.
[0014] According to some embodiments of the utility model, further including a plurality of lifting lugs, the plurality of lifting lugs are uniformly arranged around the top of the reaction tank, the first end of the connecting piece is provided with a plurality of fixing portions, and the fixing portions correspond to the lifting lugs one by one and are connected to the lifting lugs.
[0015] According to some embodiments of the present application, the number of the lifting lugs is even.
[0016] Additional aspects and advantages of the present application will be described in part in the description that follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS
[0017] The present application will be further described by reference to the drawings and examples wherein:
[0018] Figure 1 Structure diagram of the connecting piece of the shipborne greenhouse gas emission reduction equipment in some embodiments of the present application in the first state;
[0019] Figure 2 Structure diagram of the reaction tank swing when the connecting piece of the shipborne greenhouse gas emission reduction equipment in some embodiments of the present application is in the first state;
[0020] Figure 3 Structure diagram of the connecting piece of the shipborne greenhouse gas emission reduction equipment in some embodiments of the present application in the second state;
[0021] Figure 4 Structure diagram of the reaction tank swing when the connecting piece of the shipborne greenhouse gas emission reduction equipment in some embodiments of the present application is in the second state.
[0022] REFERENCE NUMERALS:
[0023] 1, reaction tank; 11, top; 12, bottom; 2, connecting piece; 21, first end; 22, second end; 23, fixed part; 3, ship body; 4, tower side rod body; 5, protection ring; 6, base; 7, lifting lug; 8, folding device. DETAILED DESCRIPTION
[0024] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0025] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.
[0026] In the description of the utility model, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0027] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood broadly, and the skilled person in the art can reasonably determine the specific meaning of the above words in the utility model combined with the specific content of the technical scheme.
[0028] The ship exhaust decarburization is to collect and store greenhouse gases such as carbon dioxide in ship exhaust. The specific implementation process is as follows: seawater enters the seawater inlet pipeline, is pressurized by the seawater inlet pump, and then part of the seawater enters the water washing tower through the seawater inlet washing tower pipeline to cool the ship exhaust fed by the ship exhaust inlet to about 40 DEG C and remove particulate matter in the ship exhaust. After water washing, the exhaust gas enters the booster pipeline through the water washing exhaust gas inlet tower pipeline and enters the compressor. After water washing, the exhaust gas enters the absorption tower through the exhaust gas inlet tower pipeline and the exhaust gas inlet pipe. The seawater after water washing is discharged into the sea through the seawater containing carbon dioxide after water washing pipeline. The other part of the seawater enters the absorption tower through the seawater inlet tower pipeline. The ship exhaust after water washing is treated by the carbon capture chemical absorption method. The carbon dioxide in the exhaust gas forms an amine salt solvent rich liquid with the solvent. The solvent rich liquid is discharged from the bottom of the absorption tower through the solvent rich liquid to the tower bottom pump pipeline, enters the absorption tower bottom pump for pressurization, and then enters the solvent rich liquid to the heating pipeline through the solvent rich liquid to the heating pipeline. After being preheated by the solvent rich liquid to the heating pipeline, the solvent rich liquid to the desorption tower pipeline is entered into the desorption tower for solvent regeneration and carbon dioxide desorption. The carbon dioxide product is further compressed, liquefied and stored through the carbon dioxide outlet at the top of the desorption tower. The solvent lean liquid after regeneration is discharged from the solvent lean liquid outlet at the bottom of the desorption tower through the solvent lean liquid to the cooling pipeline, enters the solvent lean liquid to the cooling pipeline, and is cooled by the solvent lean liquid to the cooling pipeline. The solvent lean liquid to the cooling pipeline enters the solvent lean liquid to the cooling pipeline, and is cooled by the solvent lean liquid to the cooling pipeline. The solvent lean liquid to the cooling pipeline enters the solvent lean liquid to the cooling pipeline, and is cooled by the solvent lean liquid to the cooling pipeline. The solvent lean liquid to the cooling pipeline enters the solvent lean liquid to the cooling pipeline, and is cooled by the solvent lean liquid to the cooling pipeline. The solvent lean liquid to the cooling pipeline enters the solvent lean liquid to the cooling pipeline, and is cooled by the solvent lean liquid to the cooling pipeline. 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[0029] Among them, the solvents for capturing carbon dioxide are various, and these solvents play a key role in carbon dioxide capture technology. Propylene carbonate: is a common solvent for absorbing carbon dioxide gas. The physical absorption method has less corrosion to the equipment and consumes less heat, but the amount of carbon dioxide absorbed under normal pressure is low, and the solvent is easily degraded by impurities such as sulfides in flue gas, so its regeneration and recycling performance is poor. Polyethylene glycol, N-methyl pyrrolidone, polyethylene glycol dimethyl ether, etc.: these solvents also have certain ability to absorb carbon dioxide, but in actual application, selection and optimization may be needed according to specific conditions. Amine solution: amine solution chemical absorption method is one of the most advanced carbon dioxide separation technologies, widely used in power generation, fuel modification and industrial production fields. Amine solution (such as ethanol amine MEA) reacts with carbon dioxide in the absorption tower to form rich liquid, and then the rich liquid is heated and decomposed in the desorption tower to release carbon dioxide, realizing the separation and recovery of carbon dioxide. This method requires high control of temperature and pressure, and the mass fraction of amine solution is generally controlled at 25-30% to avoid serious corrosion to the equipment. Polyethylene glycol dimethyl ether: this solvent has been applied in CO2 capture supporting solvent production projects. By utilizing abundant propylene resources to produce epoxy propane, and further producing polyethylene glycol dimethyl ether and other solvents, the demand for carbon dioxide capture can be met. In addition, methanol and other organic solvents are also common carbon dioxide capture solvents.
[0030] The first aspect embodiment of the shipborne greenhouse gas emission reduction equipment of the utility model is used for absorbing greenhouse gas in tail gas on the ship body 3, with reference to Figure 1 、 Figure 2 、 Figure 3 and Figure 4The application relates to a reaction device for collecting greenhouse gases in a marine environment. The reaction device comprises a reaction tank 1 and a connecting piece 2. The reaction tank 1 is an absorption tower or a desorption tower. The absorption tower is used to capture greenhouse gases in exhaust gas by a solvent, and the desorption tower is used to release greenhouse gases in the solvent. The solvent for capturing carbon dioxide is circulated between the absorption tower and the desorption tower. The ship exhaust gas is discharged into the absorption tower, and the carbon dioxide in the exhaust gas is dissolved in the solvent in the absorption tower. The solvent is discharged into the desorption tower after absorbing carbon dioxide, and the carbon dioxide is released in the desorption tower. After releasing the carbon dioxide, the solvent enters the absorption tower again to absorb the carbon dioxide in the exhaust gas, and the circulation is repeated. In the absorption tower, the solvent absorbs the carbon dioxide in the ship exhaust gas into the solvent, and in the desorption tower, the solvent releases the carbon dioxide in the solvent into the desorption tower. When the greenhouse gas capture device is operated in a marine environment, the continuous rocking and tilting of the ship body will cause the mass transfer capacity of the reaction device to decrease, and the device cannot be operated stably, so it is necessary to avoid rocking.
[0031] The exhaust gas of the ship contains various components. Sulfur oxides (SOx): Sulfur oxides in ship exhaust gas mainly come from the combustion of sulfur in fuel oil. Sulfur oxides are one of the main components of air pollution, which has a serious impact on human health and the environment, including the formation of acid rain, etc. Nitrogen oxides (NOx): Nitrogen oxides are one of the main pollutants produced in the combustion process of ship diesel engines. It is mainly formed by the reaction of nitrogen in fuel with oxygen at high temperature, and it can also be formed by the oxidation of nitrogen in the air during the combustion process. Nitrogen oxides are not only harmful to human health, but also an important precursor of photochemical smog and ozone layer destruction. Particulate matter (PM): Particulate matter in ship exhaust gas includes black carbon, organic particulate matter, etc. These particulate matters have a serious impact on human health, can penetrate into the lungs and cause various respiratory diseases. In addition, particulate matter also has an impact on atmospheric visibility and climate. Carbon monoxide (CO): Although its toxicity is lower than that of other pollutants, large-scale emission still has adverse effects on human health and the environment. Carbon dioxide (CO2): As one of the greenhouse gases, the emission of carbon dioxide has an important impact on global climate change. Volatile organic compounds (VOCs): Including various organic compounds, which have potential hazards to human health and the environment. Carbon dioxide is the main component of greenhouse gases, and needs to be effectively collected. When the exhaust gas is washed by seawater, various substances such as particulate matter in the exhaust gas can be removed.
[0032] The first end 21 of the connecting piece 2 is connected to the top 11 of the reaction tank 1, and the second end 22 of the connecting piece 2 is connected to the ship body 3, so that the reaction tank 1 swings relative to the ship body 3. Specifically, the first end 21 of the connecting piece 2 is hung on the top 11 of the reaction tank 1, and / or the second end 22 of the connecting piece 2 is hung on the ship body 3. At the same time, the first end 21 of the connecting piece 2 can swing relative to the second end 22, so that the reaction tank 1 can swing relative to the ship body 3. It should be noted that the swing of the reaction tank 1 is caused by gravity, that is, when the ship body 3 shakes, gravity causes the reaction tank 1 to remain vertical, so that the reaction tank 1 swings relative to the ship body 3, thereby avoiding leakage caused by violent shaking of the solvent in the reaction tank 1. The vertical state of the reaction tank 1 means that the central axis of the reaction tank 1 points to the center of the earth.
[0033] The connecting piece 2 includes a first state and a second state; when the connecting piece 2 is in the first state, the bottom 12 of the reaction tank 1 abuts against the ship body 3; when the connecting piece 2 is in the second state, the bottom 12 of the reaction tank 1 is suspended, so that the reaction tank 1 remains vertical. During the sailing of the ship, there are two states, one is a stable state, in which the ship body shakes with a small amplitude, at this time, the first state of the connecting piece 2 corresponds, the connecting piece 2 is elongated in length, so that the bottom 12 of the reaction tank 1 can abut against the ship body 3, at this time, the weight of the reaction tank 1 is mostly borne by the ship body, and when the ship body shakes, the reaction tank 1 shakes relative to the ship body with a smaller amplitude, so that the reaction tank 1 is more stable. The other is a state of jolting, in which the ship body 3 shakes with a large amplitude, at this time, the second state of the connecting piece 2 corresponds. The length of the connecting piece 2 is shortened, the reaction tank 1 is hung, so that the bottom 12 of the reaction tank 1 is suspended, so that the reaction tank 1 can more conveniently swing relative to the ship body 3, that is, remain vertical under the action of gravity.
[0034] According to some embodiments of the present application, the tower edge rod body 4 is fixedly arranged on the ship body 3, the second end 22 of the connecting piece 2 is connected to the tower edge rod body 4, and the first end 21 of the connecting piece 2 is hung on the top 11 of the reaction tank 1. In the process of arranging the connecting piece 2 and the reaction tank 1, in order to avoid arranging the reaction tank 1 too high or arranging the connecting piece 2 too long, the connecting position of the connecting piece 2 and the ship body 3 needs to be adjusted. Generally, the reaction tank 1 is arranged in the ship cabin, and the height of the top 11 of the ship cabin cannot be adjusted, so the tower edge rod body 4 is arranged, so that the connecting piece 2 can be arranged at a suitable height, avoiding that the connecting piece 2 is too long.
[0035] According to some embodiments of the utility model, still include protection ring 5, protection ring 5 is fixedly arranged on tower side pole body 4, protection ring 5 is set on reaction kettle 1, and protection ring 5 has interval with reaction kettle 1 to limit the swing amplitude of reaction kettle 1. In order to avoid the amplitude of reaction kettle 1 to be too large in the process of swinging, therefore set protection ring 5 to limit the swing range of reaction kettle 1. Wherein when connecting piece 2 is in the first state, the top 11 of reaction kettle 1 swings, and the bottom 12 of reaction kettle 1 abuts on the position of ship body 3 and does not change, and connecting piece 2 can limit the swing range of the top 11 of reaction kettle 1, and the protection ring 5 set can protect reaction kettle 1 in the case where reaction kettle 1 breaks away from connecting piece 2, avoid the phenomenon that reaction kettle 1 overturns, and also can avoid the length of connecting piece 2 being too long and causing the swing angle of reaction kettle 1 to be too large. When connecting piece 2 is in the second state, the top 11 of reaction kettle 1 is hung on ship body 3, and the bottom 12 of reaction kettle 1 is suspended, when ship body 3 shakes, the swing amplitude of the bottom 12 of reaction kettle 1 is large, and the swing amplitude of ship body 3 is larger at this time, thereby causing the bottom 12 of reaction kettle 1 to swing greatly, in order to avoid the swing amplitude of the bottom 12 of reaction kettle 1 to be large and prevent reaction kettle 1 from colliding with ship body 3, therefore set protection ring 5 to prevent the swing amplitude of reaction kettle 1 to be large. Further, the inner side of protection ring 5 is provided with elastic gasket, for example rubber pad, so that when protection ring 5 collides with reaction kettle 1, the rubber pad elastically protects reaction kettle 1, avoiding damaging reaction kettle 1. When setting protection ring 5, the size of protection ring 5 is set according to the size of the swing amplitude of reaction kettle 1, when protection ring 5 is set on the outer side of reaction kettle 1, there is gap between protection ring 5 and reaction kettle 1, and reaction kettle 1 can swing in protection ring 5.
[0036] According to some embodiments of the utility model, including a plurality of protection rings 5, when reaction kettle 1 remains vertical, a plurality of protection rings 5 are arranged at intervals along reaction kettle 1. Through a plurality of protection rings 5, the swing of reaction kettle 1 is more safely and reliably limited, avoiding reaction kettle 1 from leaving the swing range defined by protection ring 5.
[0037] According to some embodiments of the utility model, still include base 6, the recess is set on base 6, when connecting piece 2 is in the first state, the bottom 12 of reaction kettle 1 is arranged in the recess. By setting the recess, when ship body 3 is relatively stable, i.e. in the first state, reaction kettle 1 is placed on base 6, and the bottom 12 of reaction kettle 1 cooperates with the recess on base 6, so that reaction kettle 1 can be fixedly arranged relative to ship body 3, at this time, reaction kettle 1 can be better avoided from shaking.
[0038] According to some embodiments of the utility model, the recess is a semispherical recess, the bottom 12 of the reaction tank 1 has a curved surface, the curved surface is rotationally matched with the recess to make the reaction tank 1 swing. Through the matching of the recess and the bottom 12 of the reaction tank 1, when the connecting piece 2 is in the first state, the bottom 12 of the reaction tank 1 rotates in the recess relative to the recess, so that the reaction tank 1 swings, so that the reaction tank 1 is more stable. Further, a counterweight is arranged on the bottom 12 of the reaction tank 1, under the action of gravity, the reaction tank 1 is kept in a vertical state according to the principle of a tumbler.
[0039] According to some embodiments of the utility model, the connecting piece 2 is a non-elastic chain, so that the swing of the reaction tank 1 is more stable. Specifically, the connecting piece 2 is arranged as a metal chain.
[0040] According to some embodiments of the utility model, further include a take-up device 8, the connecting piece 2 is a flexible chain, the second end 22 of the chain is arranged on the take-up device 8, and the take-up device 8 is used for controlling the length of the chain to switch the connecting piece 2 between the first state and the second state. The flexible chain can be wound to make the chain more convenient to take up. Specifically, the take-up device 8 is arranged as a winding motor, the winding motor shortens the length of the connecting piece 2 by winding the chain on the motor, so as to hang the reaction tank 1, so that the connecting piece 2 is in the second state, and so that the bottom 12 of the reaction tank 1 is suspended. The winding motor releases the length of the chain, so that the length of the connecting piece 2 is lengthened, so that the connecting piece 2 is in the first state.
[0041] According to some embodiments of the utility model, further include a plurality of lifting lugs 7, the plurality of lifting lugs 7 are uniformly arranged around the top 11 of the reaction tank 1, the first end 21 of the connecting piece 2 is provided with a plurality of fixing portions 23, and the fixing portion 23 corresponds to and is connected to the lifting lug 7. By arranging the plurality of lifting lugs 7, the connection between the connecting piece 2 and the reaction tank 1 is more stable, and the lifting lug 7 is uniformly arranged around the top 11 of the reaction tank 1, so that the reaction tank 1 is more easily kept in a vertical state when being lifted by the connecting piece 2.
[0042] According to some embodiments of the utility model, the number of lifting lugs 7 is even. Wherein the number of lifting lugs 7 is set to be even, so that the reaction tank 1 is more reasonable in the process of swinging.
[0043] In the description of the present utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present utility model. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
Claims
1. Shipborne greenhouse gas emission reduction equipment, used to absorb greenhouse gases in exhaust gas on the hull, characterized by: include: A reaction tank, wherein the reaction tank is an absorption tower or a desorption tower, the absorption tower is used to capture greenhouse gases in the tail gas through a solvent, and the desorption tower is used to release the greenhouse gases in the solvent; a connecting member, wherein a first end of the connecting member is connected to the top of the reaction tank, and a second end of the connecting member is connected to the hull, so that the reaction tank swings relative to the hull, and the connecting member includes a first state and a second state; When the connecting member is in the first state, the bottom of the reaction tank abuts against the hull; When the connecting member is in the second state, the bottom of the reaction tank is suspended in the air, so that the reaction tank remains vertical.
2. The shipborne greenhouse gas emission reduction device according to claim 1, characterized in that: It also includes a tower side rod body, which is fixed to the hull, the second end of the connecting member is connected to the tower side rod body, and the first end of the connecting member is hung on the top of the reaction tank.
3. The shipborne greenhouse gas emission reduction device according to claim 2, characterized in that: It also includes a protection ring, which is fixed on the tower side rod body and sleeved on the reaction tank. There is a gap between the protection ring and the reaction tank to limit the swing amplitude of the reaction tank.
4. The shipborne greenhouse gas emission reduction device according to claim 3, characterized in that: The invention comprises a plurality of protection rings, which are arranged at intervals along the reaction tank when the reaction tank is kept vertical.
5. The shipborne greenhouse gas emission reduction device according to claim 1, characterized in that: It also includes a base, which is provided with a groove. When the connecting piece is in the first state, the bottom of the reaction tank is arranged in the groove.
6. The shipborne greenhouse gas emission reduction device according to claim 5, characterized in that: The groove is a hemispherical groove, and the bottom of the reaction tank has a curved surface, and the curved surface is rotationally matched with the groove to make the reaction tank swing.
7. The shipborne greenhouse gas emission reduction device according to claim 1, characterized in that: The connecting piece is a non-elastic chain.
8. The shipborne greenhouse gas emission reduction device according to claim 7, characterized in that: It also includes a retractable device, the connecting member is a flexible chain, the second end of the chain is arranged on the retractable device, and the retractable device is used to control the length of the chain so that the connecting member switches between the first state and the second state.
9. The shipborne greenhouse gas emission reduction device according to claim 8, characterized in that: It also includes a plurality of lifting ears, which are evenly arranged around the top of the reaction tank. The first end of the connecting piece is provided with a plurality of fixing parts, which correspond to the lifting ears one by one and are connected to the lifting ears.
10. The shipborne greenhouse gas emission reduction device according to claim 9, characterized in that: The number of the lifting ears is an even number.