Liquid tank structure for reducing supercritical carbon dioxide drainage heat loss and ship

Abstract

The invention relates to the technical field of ships, and discloses a liquid tank structure capable of reducing supercritical carbon dioxide drainage heat loss and a ship, the liquid tank structure comprises a liquid tank, a partition plate, a first exhaust valve, a first drainage valve and a first air inlet pipe, and the liquid tank is provided with a first top wall and a first bottom wall which are oppositely arranged; the partition plate is connected to the first top wall and extends towards the first bottom wall so as to divide the containing cavity into a first containing space and a second containing space. The first air inlet pipe extends into the second accommodating space and is used for filling the second accommodating space with supercritical carbon dioxide; wherein the partition plate and the first bottom wall are arranged in a spaced mode to form a first opening connected with the first containing space and the second containing space, a plurality of first holes are formed in the partition plate, and the first holes penetrate through the partition plate in the thickness direction of the partition plate. The technical problems that the contact area between supercritical carbon dioxide and the inner wall of the liquid tank and the water surface is large, heat exchange loss is large, the size is prone to shrinkage, and consequently drainage efficiency is reduced are solved.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a liquid tank structure and a ship for reducing heat loss from supercritical carbon dioxide drainage. Background Art

[0002] With the continuous development of ocean navigation, ships have become key equipment for studying the deep-sea environment, developing marine resources, and conducting scientific surveys. When ships are sailing in the ocean, they need to drain the liquid tanks. In related technologies, liquid carbon dioxide can quickly transform into a supercritical state after being heated and pressurized, and its volume expands several times, with strong working capacity, and can effectively drain water from the liquid tank. However, during the process of draining the liquid tank structure of supercritical carbon dioxide, the contact area between carbon dioxide and the inner wall of the liquid tank and the water surface is large, the heat exchange loss is large, and the volume is easy to shrink, resulting in reduced drainage efficiency. Summary of the Invention

[0003] The present application provides a liquid tank structure and a ship for reducing the heat loss of supercritical carbon dioxide drainage, which solves the technical problem that during the drainage process of supercritical carbon dioxide in the liquid tank structure, the contact area between carbon dioxide and the inner wall of the liquid tank and the water surface is large, the heat exchange loss is large, and the volume is easily contracted, resulting in reduced drainage efficiency.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include: In the first aspect, an embodiment of the present application provides a liquid tank structure for reducing the heat loss of supercritical carbon dioxide drainage. The liquid tank structure includes a liquid tank, a partition, a first exhaust valve, a first drain valve and a first air inlet pipe. The liquid tank has a accommodating chamber. In the vertical direction, the liquid tank has a first top wall and a first bottom wall arranged opposite to each other; the partition is arranged in the accommodating chamber, the partition is connected to the first top wall and extends toward the first bottom wall to separate the accommodating chamber into a first accommodating space and a second accommodating space; the first exhaust valve is arranged on the first top wall, and the first exhaust valve can be selectively connected to the first accommodating space; the first drain valve is arranged on the first bottom wall, and the first drain valve can be selectively connected to the accommodating chamber; the first air inlet pipe extends into the second accommodating space, and the first air inlet pipe is used to fill the second accommodating space with supercritical carbon dioxide; wherein the partition is spaced apart from the first bottom wall to form a first opening connecting the first accommodating space and the second accommodating space, and a plurality of first holes are arranged on the partition, and the plurality of first holes pass through the partition along the thickness direction of the partition.

[0005] The liquid tank structure proposed in the embodiment of the present application is characterized in that a partition is arranged in the storage chamber of the liquid tank, and the partition is spaced apart from the first bottom wall to form a first opening connecting the first storage space and the second storage space. This can reduce the contact area between carbon dioxide and the liquid in the liquid tank, reduce the cooling area of carbon dioxide, reduce the shrinkage volume of carbon dioxide, and improve the drainage capacity of the liquid tank structure. A plurality of first holes are arranged on the partition, and the plurality of first holes pass through the partition along the thickness direction of the partition. In this way, during the process of water entering the liquid tank, the carbon dioxide in the second storage space can enter the first storage space, thereby improving the water entry efficiency of the liquid tank.

[0006] Optionally, a plurality of first hole groups are provided on the partition plate, and the plurality of first hole groups are spaced apart along the first direction, and each first hole group includes a plurality of first holes spaced apart along the vertical direction, and the first direction, the thickness direction of the partition plate and the vertical direction are perpendicular to each other; the plurality of first hole groups include adjacent first sub-hole groups and second sub-hole groups, and along the first direction, any first hole of the first sub-hole group is arranged relative to the corresponding first hole of the second sub-hole group.

[0007] The multiple first hole groups include adjacent first sub-hole groups and second sub-hole groups. Along the first direction, any first hole of the first sub-hole group is arranged relative to the corresponding first hole of the second sub-hole group. This enables the carbon dioxide in the second storage space to flow into the first storage space more smoothly and evenly, thereby improving the liquid filling efficiency of the liquid tank and improving the stability and reliability of the liquid filling of the liquid tank.

[0008] Optionally, along the first direction, the distance between two adjacent first holes is A, and along the vertical direction, the distance between two adjacent first holes is B, satisfying: 5mm≤A≤10mm, 5mm≤B≤10mm.

[0009] In this way, it can be ensured that there are a sufficient number of first holes on the partition, so that when water enters the liquid tank, the carbon dioxide in the second holding space can be fully discharged into the first holding space. On the other hand, the distance between two adjacent first holes should be controlled within a reasonable range to avoid the first holes being arranged too adjacently, which will cause the structural strength of the partition to drop significantly and affect the use of the partition.

[0010] Optionally, the aperture of the first hole is C, satisfying: 1mm≤C≤5mm.

[0011] On the one hand, during the drainage process of the liquid tank, less liquid will flow from the first storage space into the second storage space through the first hole. Moreover, as the drainage process proceeds, the vertical height of the liquid in the first storage space will decrease, and the carbon dioxide in the second storage space will leak partially into the first storage space through the first hole. By setting 1mm≤C≤5mm, the carbon dioxide in the second storage space can be minimized from flowing into the first storage space, the drainage capacity of the liquid tank can be improved, and the contact area between the carbon dioxide and the liquid surface can be reduced. On the other hand, when the liquid tank is filled with water, the aperture C of the first hole satisfies 1mm≤C≤5mm, which can ensure that the aperture of the first hole is not too small, and the carbon dioxide in the second storage space can be discharged into the first storage space evenly and stably, thereby improving the water intake efficiency of the liquid tank.

[0012] Optionally, along the thickness direction of the partition, the sum of the projected areas of the plurality of first holes is D1, and the minimum exhaust cross-sectional area of the first exhaust valve is D2, satisfying: D2 ≥ D1.

[0013] In this way, the exhaust capacity of the first exhaust valve is at least equal to the CO2 flow capacity achievable through the first hole in the partition. This ensures that when water enters the tank and CO2 is discharged, the CO2 in the second storage space is discharged from the first exhaust valve at a relatively fast rate, preventing gas accumulation in the second storage space and causing excessive pressure. This ensures the safe and stable operation of the tank and improves the stability and reliability of the tank structure.

[0014] Optionally, along the thickness direction of the partition, the first hole has a second opening and a third opening, the size of the second opening is larger than the size of the third opening, the second opening faces the second accommodating space, and the third opening faces the first accommodating space.

[0015] The diameter of the third opening is smaller than that of the second opening, so that the first hole forms a "funnel" shape, which can guide the carbon dioxide in the second storage space to flow into the first storage space. When the liquid tank is filled with water, the pressure in the second storage space increases, and the carbon dioxide in the second storage space can more smoothly enter the first hole through the larger second opening, and then enter the first storage space through the third opening.

[0016] Optionally, the size of the first hole gradually increases along the thickness direction of the partition and in a direction away from the first accommodation space.

[0017] The uniform change in the size of the first hole can reduce the stress concentration phenomenon in the partition. Since the pressure change around the first hole is relatively gentle, the stress distribution on the partition is more uniform, which reduces the risk of damage or deformation of the partition due to excessive local stress, extends the service life of the partition, and ensures the long-term stable operation of the liquid tank structure.

[0018] Optionally, the volume of the first accommodating space is greater than the volume of the second accommodating space.

[0019] In this way, the carbon dioxide directly enters the second storage space. Compared with directly entering the first storage space, the sum of the contact area of the carbon dioxide with the liquid, the contact area of the inner wall of the liquid tank and the contact area of the partition in the second storage space, that is, the cooling area of the carbon dioxide, is greater than the cooling area of the carbon dioxide in the first storage space. This can reduce the cooling shrinkage of the carbon dioxide and discharge more water in the liquid tank.

[0020] Optionally, a blocking member is provided on the partition, and the blocking member is movably provided on the partition to block or open at least a portion of the first hole.

[0021] When the liquid tank needs to be drained, the sealing member moves on the partition to block the first hole, and the carbon dioxide is discharged into the second storage space. The carbon dioxide in the second storage space cannot leak from the first hole to the first storage space, thereby reducing the leakage of carbon dioxide volume and improving the drainage capacity of the liquid tank structure.

[0022] Optionally, the sealing member is constructed as a plurality of first plates stacked along the thickness direction of the partition. In the vertical direction, the plurality of stacked first plates are movably arranged on the partition. When the first air intake pipe is inflated, the plurality of stacked first plates are laid flat on the partition to block the plurality of first holes. Along the thickness of the partition, the projections of the plurality of first plates do not overlap.

[0023] When the liquid tank needs to be drained, multiple stacked first plates are laid flat on the partition to block the multiple first holes. The first air inlet pipe inflates the second storage space, and the carbon dioxide in the second storage space will not enter the first storage space from the first hole, thereby reducing the probability of carbon dioxide leakage and ensuring the pressure in the second storage space. Moreover, the liquid in the first storage space will not enter the second storage space from the first hole, thereby reducing the heat exchange area of the carbon dioxide in the second storage space and improving the drainage capacity of the liquid tank structure.

[0024] Optionally, along the vertical direction, the partition has a first end and a second end relatively arranged, the first end is connected to the first top wall, the second end faces the first bottom wall, the distance between the second end and the first bottom wall is E1, along the first direction, the length of the partition is E2, the first direction, the thickness direction of the partition and the vertical direction are perpendicular to each other, along the first direction, the minimum cross-sectional area of the second accommodating space is D3, and the minimum cross-sectional area of the first drain valve is D4, satisfying: E1*E2>D4, D3>D4.

[0025] In this way, it can ensure that the water in the liquid tank can be discharged quickly and stably, avoid the situation where the discharge rate of carbon dioxide is greater than the drainage rate of the liquid tank, avoid the situation where there is too much carbon dioxide in the liquid tank, and cause the pressure of carbon dioxide in the liquid tank to be too high, prevent the pressure in the liquid tank from exceeding the pressure bearing capacity of the liquid tank, and extend the service life of the liquid tank.

[0026] Optionally, the size of the partition is adjustable in the vertical direction.

[0027] The size of the partition is adjustable in the vertical direction, that is, the size of the first opening is adjustable, so that the size of the first opening can be adjusted according to the actual drainage needs of the liquid tank structure, thereby expanding the adjustment range of the first size, improving the drainage efficiency, expanding the use scope of the liquid tank structure, and expanding the application scenarios of the liquid tank structure.

[0028] Optionally, the liquid tank structure further includes a heating sheet, which is attached to the first top wall and located in the second accommodation space.

[0029] When carbon dioxide is filled into the second storage space, the heating sheet can heat the carbon dioxide in the second storage space, causing the carbon dioxide to expand due to heat, or in other words, keep the temperature of the carbon dioxide from decreasing, reduce the probability of carbon dioxide contracting when cooled, and improve the stability and reliability of the liquid tank structure.

[0030] On the second aspect, the embodiments of the present application also provide a ship, comprising the liquid tank structure of any one of the embodiments of the present application.

[0031] In the ship proposed in the embodiment of the present application, a partition is arranged in the storage chamber of the liquid tank, and the partition is spaced apart from the first bottom wall to form a first opening connecting the first storage space and the second storage space. This can reduce the contact area between carbon dioxide and the liquid in the liquid tank, reduce the cooling area of carbon dioxide, reduce the shrinkage volume of carbon dioxide, and improve the drainage capacity of the liquid tank structure. A plurality of first holes are arranged on the partition, and the plurality of first holes pass through the partition along the thickness direction of the partition. In this way, during the process of water entering the liquid tank, the carbon dioxide in the second storage space can enter the first storage space, thereby improving the water entry efficiency of the liquid tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 A schematic structural diagram of the liquid tank structure provided in an embodiment of the present application; Figure 2 A schematic diagram of a liquid tank structure provided in an embodiment of the present application without liquid; Figure 3 A schematic diagram of the structure of the partition provided in the embodiment of the present application; Figure 4 The structure of the first hole is shown; Figure 5 A schematic diagram of the structure of a ship provided in an embodiment of the present application.

[0034] [Description of Reference Numerals] Tank structure 1000; Ship 2000; Liquid tank 100; accommodating chamber 110; first top wall 120; first bottom wall 130; first accommodating space 140; second accommodating space 150; first opening 160; Partition 200; first hole 210; second opening 211; third opening 212; first end 220; second end 230; a first exhaust valve 300; First drain valve 400; a first air intake pipe 500; Blocking member 600; first plate 610; Heating sheet 700; a first liquid medium 800; First gas medium 900; Thickness direction X of the partition; first direction Y; vertical direction Z. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0037] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0039] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0040] The term "multiple" in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0041] With the continuous development of ocean navigation, ships have become key equipment for studying the deep-sea environment, developing marine resources, and conducting scientific expeditions. When a ship is sailing in the ocean, the ballast water tank (liquid tank) effectively controls the ship's draft, stability, and longitudinal state by adjusting the internal water volume, ensuring that the ship can sail safely and stably in different cargo capacities and sea conditions.

[0042] In related technologies, liquid tank structures can use supercritical carbon dioxide for drainage. Carbon dioxide is liquid at a certain pressure and temperature, has a high density, and is easy to store. Liquid carbon dioxide rapidly transforms into a supercritical state upon heating and pressurization, expanding its volume several times. It has strong working capacity and is non-toxic and pollution-free, effectively draining water from the tank. However, during the drainage process of the liquid tank structure, the carbon dioxide has a large contact area with the inner wall of the tank and the water surface, resulting in significant heat exchange losses and easy volume contraction, which reduces drainage efficiency.

[0043] In view of this, an embodiment of the present application proposes a liquid tank structure and a ship for reducing the heat loss of supercritical carbon dioxide drainage. The liquid tank structure includes a liquid tank, a partition, a first exhaust valve, a first drain valve and a first air inlet pipe. The liquid tank has a accommodating chamber. In the vertical direction, the liquid tank has a first top wall and a first bottom wall arranged opposite to each other; a partition is arranged in the accommodating chamber, the partition is connected to the first top wall and extends toward the first bottom wall to separate the accommodating chamber into a first accommodating space and a second accommodating space; the first exhaust valve is arranged on the first top wall, and the first exhaust valve can be selectively connected to the first accommodating space; the first drain valve is arranged on the first bottom wall, and the first drain valve can be selectively connected to the accommodating chamber; the first air inlet pipe extends into the second accommodating space, and the first air inlet pipe is used to fill the second accommodating space with supercritical carbon dioxide; wherein the partition is spaced apart from the first bottom wall to form a first opening connecting the first accommodating space and the second accommodating space, and a plurality of first holes are arranged on the partition, and the plurality of first holes pass through the partition along the thickness direction of the partition.

[0044] In the above scheme, the liquid tank structure proposed in the embodiment of the present application, the partition is arranged in the storage chamber of the liquid tank, and the partition is spaced apart from the first bottom wall to form a first opening connecting the first storage space and the second storage space, so that the contact area between carbon dioxide and the liquid in the liquid tank can be reduced, the cooling area of carbon dioxide can be reduced, the shrinkage volume of carbon dioxide can be reduced, and the drainage capacity of the liquid tank structure can be improved. A plurality of first holes are arranged on the partition, and the plurality of first holes pass through the partition along the thickness direction of the partition. In this way, during the process of water entering the liquid tank, the carbon dioxide in the second storage space can enter the first storage space, thereby improving the water entry efficiency of the liquid tank.

[0045] For the convenience of description, the following embodiments are described by taking a liquid tank structure for reducing heat loss of supercritical carbon dioxide drainage according to an embodiment of the present application as an example.

[0046] Figure 1 A schematic structural diagram of the liquid tank structure provided in an embodiment of the present application; Figure 2 A schematic diagram of a liquid tank structure provided in an embodiment of the present application without liquid; Figure 3 A schematic diagram of the structure of the partition provided in the embodiment of the present application; Figure 4 The structure of the first hole is shown; Figure 5 A schematic diagram of the structure of a ship provided in an embodiment of the present application.

[0047] Please refer to Figures 1 to 5The liquid tank structure 1000 for reducing heat loss from supercritical carbon dioxide drainage includes a liquid tank 100, a partition 200, a first exhaust valve 300, a first drain valve 400, and a first air inlet pipe 500. The liquid tank 100 has a accommodating chamber 110. Along the vertical direction Z, the liquid tank 100 has a first top wall 120 and a first bottom wall 130 that are oppositely arranged. The partition 200 is arranged in the accommodating chamber 110, and the partition 200 is connected to the first top wall 120 and extends toward the first bottom wall 130 to separate the accommodating chamber 110 into a first accommodating space 140 and a second accommodating space 150. The first exhaust valve 300 is arranged on the first top wall 120. The first exhaust valve 300 can be selectively connected to the first accommodating space 140, and the first drain valve 400 is arranged on the first bottom wall 130, and the first drain valve 400 can be selectively connected to the accommodating chamber 110; the first air inlet pipe 500 extends into the second accommodating space 150, and the first air inlet pipe 500 is used to fill the second accommodating space 150 with supercritical carbon dioxide; wherein, the partition 200 is spaced apart from the first bottom wall 130 to form a first opening 160 connecting the first accommodating space 140 and the second accommodating space 150, and a plurality of first holes 210 are provided on the partition 200, and the plurality of first holes 210 pass through the partition 200 along the thickness direction X of the partition.

[0048] The liquid tank 100 has a storage chamber 110 for storing water or other liquids. Along the vertical direction Z, the liquid tank structure 1000 has a first top wall 120 and a first bottom wall 130 disposed opposite each other. A partition 200 is disposed on the first top wall 120 and is located within the storage chamber 110. The partition 200 extends toward the first bottom wall 130 , separating the storage chamber 110 into a first storage space 140 and a second storage space 150.

[0049] The first drain valve 400 is disposed on the first bottom wall 130. As the name suggests, the first drain valve 400 is used to drain water from the liquid tank 100. The first drain valve 400 not only drains water from the liquid tank 100 from the receiving chamber 110 but also diverts external water into the receiving chamber 110. For example, the liquid tank 100 can be used to control the draft of the vessel 2000. When the vessel 2000 requires a large draft, water can enter the receiving chamber 110 of the liquid tank 100 through the first drain valve 400, thereby increasing the overall weight of the liquid tank 100. When the vessel 2000 requires a small draft, water in the receiving chamber 110 of the liquid tank 100 can be drained from the receiving chamber 110, thereby reducing the overall weight of the liquid tank 100 and, consequently, the draft of the vessel 2000.

[0050] The first exhaust valve 300 is arranged on the first top wall 120. The first exhaust valve 300 can be selectively connected to the first accommodating space 140. The first exhaust valve 300 can be connected to the first accommodating space 140, and the first exhaust valve 300 can also be disconnected from the first accommodating space 140. The gas in the first accommodating space 140 can leave the first accommodating space 140 through the first exhaust valve 300. When water enters the accommodating chamber 110 of the liquid tank 100 from the first drain valve 400, the water will squeeze the gas in the first accommodating space 140, so that the gas in the first accommodating space 140 is discharged from the first accommodating space 140 through the first exhaust valve 300.

[0051] The first air inlet pipe 500 extends into the second holding space 150. The first air inlet pipe 500 is used to inflate the second holding space 150. For example, one end of the first air inlet pipe 500 extends into the second holding space 150, and the other end of the first air inlet pipe 500 is connected to a carbon dioxide phase change device. The carbon dioxide phase change device stores liquid carbon dioxide. The liquid carbon dioxide becomes supercritical carbon dioxide when heated or excited and enters the first air inlet pipe 500. The supercritical carbon dioxide then enters the second holding space 150, squeezing the liquid in the second holding space 150 so that the liquid in the second holding space 150 is discharged from the drain valve.

[0052] The partition 200 is arranged on the first top wall 120, and the partition 200 is spaced apart from the first bottom wall 130. The first opening 160 is located between the partition 200 and the first bottom wall 130. The first storage space 140 and the second storage space 150 are mainly connected through the first opening 160. For example, the liquid or gas in the first storage space 140 can flow into the second storage space 150 from the first opening 160, and the liquid or gas in the second storage space 150 can flow into the first storage space 140 from the first opening 160.

[0053] A plurality of first holes 210 are provided on the partition 200. The plurality of first holes 210 can be evenly arranged on the partition 200. Along the thickness direction X of the partition, the plurality of first holes 210 pass through the partition 200. For example, when the liquid tank 100 is full of water, supercritical gaseous carbon dioxide is filled into the second storage space 150, so that the liquid in the liquid tank 100 is discharged from the first drain valve 400. A partition 200 is provided between the first storage space 140 and the second storage space 150. For example, the size of the first hole 210 can be at the millimeter level. When carbon dioxide is introduced into the second storage space 150, the liquid in the second storage space 150 will gradually decrease. The liquid is discharged through the first drain valve 400, and the liquid in the first storage space 140 gradually decreases. The carbon dioxide has a certain pressure in the first storage space 140. Since the size of the first hole 210 is at the millimeter level, the pressure of the carbon dioxide is sufficient to prevent the liquid in the first storage space 140 from flowing into the second storage space 150 or the first storage space 140 through the first hole 210. The liquid discharged into the second storage space 150 through the first hole 210 is negligible compared to the filling speed of carbon dioxide, that is, the drainage speed of the first drain valve 400 of the liquid tank 100. The first opening 160 connects the first storage space 140 and the second storage space 150. When the liquid in the second storage space 150 gradually decreases to the junction of the first opening 160 and the partition 200, the liquid in the first storage space 140 can enter the second storage space 150 through the first opening 160. Carbon dioxide continues to be discharged into the first storage space 140 until the liquid depth of the first storage space 140 and the liquid in the second storage space 150 in the vertical direction Z reach the same, that is, the liquid in the first storage space 140 and the second storage space 150 are both flush with the size of the first opening 160, and carbon dioxide continues to be discharged. At this time, the carbon dioxide in the second storage space 150 will mainly flow into the first storage space 140 from the first opening 160, thereby continuing to complete the liquid drainage operation in the storage chamber 110 of the liquid tank 100.

[0054] Compared with when no partition 200 is provided in the liquid tank 100, carbon dioxide will be directly discharged into the containing chamber 110. When the first exhaust valve 300 is closed and the first drain valve 400 is opened, carbon dioxide directly contacts the first top wall 120, the side wall and the surface of the liquid in the liquid tank 100 facing the first top wall 120. At this time, the carbon dioxide has a large contact area with the liquid surface, and the carbon dioxide is prone to volume shrinkage, which reduces the drainage efficiency.

[0055] When a certain volume of carbon dioxide passes through, the partition 200 installed in the liquid tank 100 can discharge 15.8 cubic meters of water. When the partition 200 is not installed in the liquid tank 100, only 13.6 cubic meters of water can be discharged due to the contraction of carbon dioxide. Obviously, the partition 200 installed in the liquid tank 100 can greatly improve the drainage efficiency of the liquid tank 100.

[0056] After the liquid tank 100 is drained, a large amount of carbon dioxide is stored in the liquid tank 100. When the liquid tank 100 needs to be filled with water, a large amount of liquid is injected into the liquid tank 100 through the first drain valve 400. Along the vertical direction Z, the liquid gradually rises from the first bottom wall 130 to the first top wall 120. During the rising process of the liquid, the first exhaust valve 300 is open, and the carbon dioxide will be discharged from the holding chamber 110 through the first exhaust valve 300. When the liquid continues to rise to the first opening 160 and is higher than the first opening 160, that is, the liquid rises to the partition 200, the carbon dioxide in the second holding chamber can flow into the first holding chamber 110 through the multiple first holes 210 provided on the partition 200, and the exhaust valve provided in the first holding chamber 110 can discharge all the carbon dioxide from the liquid tank 100. The multiple first holes 210 provided on the partition 200 can enable all the gas in the liquid tank 100 to be discharged when water enters the liquid tank 100, thereby improving the water intake efficiency of the liquid tank 100.

[0057] Specifically, the partition 200 is arranged in the holding chamber 110 of the liquid tank 100, and the partition 200 is spaced apart from the first bottom wall 130 to form a first opening 160 connecting the first holding space 140 and the second holding space 150. This can reduce the contact area between carbon dioxide and the liquid in the liquid tank 100, reduce the cooling area of gaseous carbon dioxide, reduce the shrinkage volume of carbon dioxide, and improve the drainage capacity of the liquid tank structure 1000. A plurality of first holes 210 are provided on the partition 200, and the plurality of first holes 210 pass through the partition 200 along the thickness direction X of the partition. In this way, during the process of water entering the liquid tank 100, the carbon dioxide in the second holding space 150 can enter the first holding space 140, thereby improving the water entry efficiency of the liquid tank 100.

[0058] In some embodiments, please refer to Figure 1 The first gas medium 900 is configured as carbon dioxide, the first liquid medium 800 is configured as water, and the first air inlet pipe 500 discharges the first gas medium 900 into the second accommodation space 150 . At this time, the first liquid medium 800 is discharged from the first drain valve 400 .

[0059] Please refer to Figures 1 to 4In this embodiment, a plurality of first hole groups are provided on the partition 200. The plurality of first hole groups are spaced apart along the first direction Y. Each first hole group includes a plurality of first holes 210 spaced apart along the vertical direction Z. The first direction Y, the thickness direction X of the partition, and the vertical direction Z are perpendicular to each other. The plurality of first hole groups include adjacent first sub-hole groups and second sub-hole groups. Along the first direction Y, any first hole 210 of the first sub-hole group is arranged opposite to the corresponding first hole 210 of the second sub-hole group.

[0060] A plurality of first hole groups are provided on the partition 200. Along the first direction Y, the plurality of first hole groups are spaced apart and arranged in sequence. The plurality of first hole groups include a plurality of first holes 210 spaced apart along the vertical direction Z. The plurality of first holes 210 are arranged in sequence in the vertical direction Z. The first direction Y, the vertical direction Z and the thickness direction X of the partition are perpendicular to each other. The plurality of first hole groups include two adjacent first sub-hole groups and a second sub-hole group. Along the first direction Y, any first hole 210 of the first sub-hole group and any first hole 210 of the second sub-hole group are arranged relative to each other. That is, each first hole 210 in the first sub-hole group is flush with each first hole 210 in the corresponding second sub-hole group in the first direction Y.

[0061] A plurality of first hole groups are provided on the partition 200, so that when the liquid tank 100 is filled with water, the carbon dioxide in the second storage space 150 can enter the first storage space 140, thereby avoiding the situation where the carbon dioxide is stagnant in the second storage space 150 and cannot be discharged due to the obstruction of the partition 200. Moreover, the plurality of first hole groups include adjacent first sub-hole groups and second sub-hole groups. Along the first direction Y, any first hole 210 of the first sub-hole group is arranged relative to the corresponding first hole 210 of the second sub-hole group, so that when the liquid tank 100 is repaired and cleaned, the staff can more conveniently check the condition of the partition 200 and whether the first hole 210 is blocked. If blockage is found, it can also be located and cleaned more accurately.

[0062] Moreover, the multiple first hole groups include adjacent first sub-hole groups and second sub-hole groups. Along the first direction Y, any first hole 210 of the first sub-hole group is arranged relative to the corresponding first hole 210 of the second sub-hole group. This can enable the carbon dioxide in the second storage space 150 to flow more smoothly and evenly into the first storage space 140, thereby improving the liquid filling efficiency of the liquid tank 100 and improving the stability and reliability of the liquid filling of the liquid tank 100.

[0063] Please refer to Figures 1 to 4 In this embodiment, the distance between two adjacent first holes 210 along the first direction Y is A, and the distance between two adjacent first holes 210 along the vertical direction Z is B, satisfying: 5mm≤A≤10mm, 5mm≤B≤10mm.

[0064] For example, the first holes 210 can be evenly and spaced apart on the partition 200. The distance A between two adjacent first holes 210 along the first direction Y and the distance B between two adjacent first holes 210 along the vertical direction Z can be the same. The distance A between two adjacent first holes 210 along the first direction Y can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc., and the distance B between two adjacent first holes 210 along the vertical direction Z can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc. This ensures that there are a sufficient number of first holes 210 on the partition 200. When the tank 100 is flooded, carbon dioxide in the second storage space 150 can be fully discharged into the first storage space 140. On the other hand, the distance between two adjacent first holes 210 should be controlled within a reasonable range to avoid the first holes 210 being arranged too close together, which would significantly reduce the structural strength of the partition 200 and affect its usability.

[0065] Moreover, the appropriate distance between the first holes 210 can also ensure that when carbon dioxide enters the first storage space 140 from the second storage space 150, there will be no excessive turbulence and resistance caused by the small spacing between the first holes 210, and there will be no uneven flow of carbon dioxide from the second storage space 150 into the first storage space 140 due to the large spacing between the first holes 210.

[0066] In addition, 5mm≤A≤10mm, 5mm≤B≤10mm, which can make the first hole 210 more convenient to process, and it is easier to control the error of the hole spacing when the partitions 200 are mass-produced, ensuring that the performance of each partition 200 is similar, thereby ensuring the quality stability of the entire liquid tank structure 1000.

[0067] Please refer to Figures 1 to 4 In this embodiment, the aperture of the first hole 210 is C, which satisfies: 1mm≤C≤5mm.

[0068] For example, the diameter C of the first hole 210 may be 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm. The aperture C of the first hole 210 is controlled within the range of 1 mm to 5 mm. On the one hand, during the drainage process of the liquid tank 100, less liquid will flow from the first storage space 140 into the second storage space 150 through the first hole 210. Moreover, as the drainage process proceeds, the height of the liquid in the first storage space 140 in the vertical direction Z will decrease, and the carbon dioxide in the second storage space 150 will partially leak into the first storage space 140 through the first hole 210. By setting 1 mm ≤ C ≤ 5 mm, the flow of carbon dioxide in the second storage space 150 into the first storage space 140 can be minimized, thereby improving the drainage capacity of the liquid tank 100 and reducing the contact area between carbon dioxide and the liquid surface. On the other hand, when the liquid tank 100 is flooded, the aperture C of the first hole 210 satisfies 1 mm ≤ C ≤ 5 mm. This ensures that the aperture of the first hole 210 is not too small, and the carbon dioxide in the second storage space 150 can be evenly and stably discharged into the first storage space 140, thereby improving the water intake efficiency of the liquid tank 100.

[0069] Please refer to Figures 1 to 4 In this embodiment, along the thickness direction X of the partition, the sum of the projected areas of the plurality of first holes 210 is D1, and the minimum exhaust cross-sectional area of the first exhaust valve 300 is D2, satisfying: D2 ≥ D1.

[0070] When water enters the tank 100 through the first drain valve 400 and gas needs to be discharged, the first exhaust valve 300 serves as the primary exhaust channel. D2 ≥ D1, ensuring that the exhaust capacity of the first exhaust valve 300 is at least equal to the carbon dioxide flow capacity achieved through the first hole 210 in the partition 200. This ensures that carbon dioxide within the second storage space 150 is discharged quickly through the first exhaust valve 300 when water enters the tank 100 and carbon dioxide is discharged, preventing accumulation of carbon dioxide within the second storage space 150 and excessive pressure. This ensures the safe and stable operation of the tank 100 and improves the operational stability and reliability of the tank structure 1000.

[0071] Under different working conditions, the water inlet speed of the liquid tank 100 may be different. The larger cross-sectional area of the first exhaust valve 300 can ensure that under the condition of a higher water inlet speed of the liquid tank 100, the carbon dioxide in the second holding space 150 can be discharged into the first holding space 140 in time, and then discharged from the first exhaust valve 300 in time.

[0072] Please refer to Figures 1 to 4In this embodiment, along the thickness direction X of the partition, the first hole 210 has a second opening 211 and a third opening 212. The size of the second opening 211 is larger than that of the third opening 212. The second opening 211 faces the second accommodating space 150, and the third opening 212 faces the first accommodating space 140.

[0073] The size of the third opening 212 facing the first storage space 140 is smaller than the size of the second opening 211 facing the second storage space 150, that is, the diameter of the third opening 212 is smaller than the diameter of the second opening 211, so that the first hole 210 forms a shape similar to a "funnel", which can guide the carbon dioxide in the second storage space 150 to flow to the first storage space 140. When the liquid tank 100 is filled with water, the pressure in the second storage space 150 increases, and the carbon dioxide in the second storage space 150 can enter the first hole 210 more smoothly through the larger second opening 211, and then enter the first storage space 140 through the third opening 212.

[0074] Moreover, the size of the second opening 211 is larger than that of the third opening 212. When the liquid tank 100 is filled with water, less liquid in the first storage space 140 will flow into the second storage space 150, thereby reducing the heat exchange area of the carbon dioxide in the second storage space 150, reducing the shrinkage degree of carbon dioxide, and improving the drainage capacity of the liquid tank structure 1000.

[0075] Please refer to Figures 1 to 4 In this embodiment, the size of the first hole 210 gradually increases along the thickness direction X of the partition and away from the first receiving space 140.

[0076] When carbon dioxide flows from the second holding space 150 to the first holding space 140, since the size of the first hole 210 gradually increases in the direction away from the first holding space 140, carbon dioxide will have a wider channel in the initial stage of entering the first hole 210 and can enter more smoothly. This gradually shrinking channel design conforms to the principles of fluid dynamics and can effectively reduce the resistance of carbon dioxide when flowing in the first hole 210, so that carbon dioxide can pass through the partition 200 more efficiently, thereby enhancing the drainage capacity of the liquid tank structure 1000.

[0077] Moreover, the size of the first hole 210 gradually increases, making the pressure change more uniform. The carbon dioxide will not encounter sudden changes in the aperture 2 to produce pressure fluctuations, but will flow under a relatively gentle pressure gradient, which helps to maintain the stability of the pressure in the liquid tank 100 and improve the safety and reliability of the liquid tank 100.

[0078] In addition, the uniform change in the size of the first hole 210 can reduce the stress concentration phenomenon in the partition 200. Since the pressure change around the first hole 210 is relatively gentle, the stress distribution on the partition 200 is more uniform, which reduces the risk of damage or deformation of the partition 200 due to excessive local stress, extends the service life of the partition 200, and ensures the long-term and stable operation of the liquid tank structure 1000.

[0079] Please refer to Figures 1 to 4 In this embodiment, the volume of the first accommodating space 140 is greater than the volume of the second accommodating space 150 .

[0080] The volume of the first storage space 140 is greater than that of the second storage space 150. That is, when both the first storage space 140 and the second storage space 150 are filled with carbon dioxide, the cooling area of the carbon dioxide in the first storage space 140 is greater than the cooling area of the carbon dioxide in the second storage space 150. The first air inlet pipe 500 is connected to the second storage space 150, and the gas in the first air inlet pipe 500 is discharged into the second storage space 150. In this way, the carbon dioxide directly enters the second storage space 150. Compared with directly entering the first storage space 140, the sum of the contact area of the carbon dioxide with the liquid in the second storage space 150, the contact area of the inner wall of the liquid tank 100, and the contact area of the partition 200, that is, the cooling area of the carbon dioxide, is greater than the cooling area of the carbon dioxide in the first storage space 140. In this way, the cooling shrinkage of the carbon dioxide can be reduced, and more water in the liquid tank 100 can be discharged.

[0081] Please refer to Figures 1 to 4 In this embodiment, a blocking member 600 is provided on the partition 200 , and the blocking member 600 is movably provided on the partition 200 to block or open at least a portion of the first hole 210 .

[0082] A blocking member 600 is provided on the partition 200, which can block the plurality of first holes 210. For example, when the tank 100 needs to be drained, the blocking member 600 moves on the partition 200, thereby blocking the first holes 210, allowing the carbon dioxide to be discharged into the second storage space 150. This prevents the carbon dioxide in the second storage space 150 from leaking from the first holes 210 into the first storage space 140, thereby reducing the volume of carbon dioxide leakage and improving the drainage capacity of the tank structure 1000. Furthermore, liquid in the first storage space 140 cannot enter the second storage space 150 through the first holes 210, reducing the cooling area of the carbon dioxide.

[0083] Please refer to Figures 1 to 4In this embodiment, the blocking member 600 is constructed as a plurality of first plates 610 stacked along the thickness direction X of the partition. Along the vertical direction Z, the plurality of stacked first plates 610 are movably arranged on the partition 200. When the first air intake pipe 500 is inflated, the plurality of stacked first plates 610 are laid flat on the partition 200 to block the plurality of first holes 210. Along the thickness of the partition 200, the projections of the plurality of first plates 610 do not overlap.

[0084] Exemplarily, the number of first plates 610 can be 2, 3, 4, etc., and multiple first plates 610 can be stacked along the thickness direction X of the partition. In this way, when the liquid tank 100 needs to be exhausted after filling with liquid, the stacking of multiple first plates 610 can reduce the space occupied by the first plates 610 in the containing chamber 110 as much as possible. When the liquid tank 100 needs to be exhausted, the carbon dioxide in the second containing space 150 needs to be discharged from the first hole 210 into the first containing space 140. The stacking of multiple first plates 610 can reduce the obstruction of the first holes 210 on the partition 200 by the multiple first plates 610, so that the carbon dioxide in the second containing space 150 can enter the first containing space 140 through the multiple first holes 210.

[0085] When the liquid tank 100 needs to be drained, multiple stacked first plates 610 are laid flat on the partition 200, thereby blocking multiple first holes 210. The first air inlet pipe 500 inflates the second storage space 150, and the carbon dioxide in the second storage space 150 will not enter the first storage space 140 from the first hole 210, thereby reducing the probability of carbon dioxide leakage and ensuring the pressure of the second storage space 150. Moreover, the liquid in the first storage space 140 will not enter the second storage space 150 from the first hole 210, thereby reducing the heat exchange area of the carbon dioxide in the second storage space 150 and improving the drainage capacity of the liquid tank structure 1000.

[0086] Please refer to Figures 1 to 4 In this embodiment, along the vertical direction Z, the partition 200 has a first end 220 and a second end 230 that are oppositely arranged, the first end 220 is connected to the first top wall 120, and the second end 230 faces the first bottom wall 130, and the distance between the second end 230 and the first bottom wall 130 is E1. Along the first direction Y, the length of the partition 200 is E2, and the first direction Y, the thickness direction X of the partition, and the vertical direction Z are perpendicular to each other. Along the first direction Y, the minimum cross-sectional area of the second accommodating space 150 is D3, and the minimum cross-sectional area of the first drain valve 400 is D4, satisfying: E1*E2>D4, D3>D4.

[0087] Exemplarily, the liquid tank 100 not only has a first top wall 120 and a first bottom wall 130 that are arranged opposite to each other, but also has four side walls connecting the first top wall 120 and the first bottom wall 130. The first end 220 of the partition 200 is connected to the first top wall 120, and the second end 230 of the partition 200 faces the first bottom wall 130. The two ends of the partition 200 in the first direction Y respectively abut against the two side walls of the liquid tank 100 in the first direction Y, thereby blocking the two side walls. The distance between the second end 230 and the first bottom wall 130 is E1. Along the first direction Y, the length of the partition 200 is E2, and E1*E2 is greater than D4. In other words, the size of the first opening 160 between the partition 200 and the first bottom wall 130 is greater than the minimum cross-sectional area D4 of the first drain valve 400. The minimum cross-sectional area D3 of the second accommodating space 150 is greater than the minimum cross-sectional area D4 of the first drain valve 400, thereby ensuring that the water in the second accommodating space 150 can be efficiently and fully discharged into the first drain valve 400 and then discharged from the first drain valve 400, reducing the probability of a reduction in the drainage rate in the second accommodating space 150 due to E1*E2 or D4 being too small, ensuring that the water in the liquid tank 100 can be discharged quickly and stably, avoiding the situation where the discharge rate of carbon dioxide is greater than the drainage rate of the liquid tank 100, avoiding the situation where there is too much carbon dioxide in the liquid tank 100, causing the pressure of carbon dioxide in the liquid tank 100 to be too high, preventing the pressure in the liquid tank 100 from exceeding the pressure bearing capacity of the liquid tank 100, and extending the service life of the liquid tank 100.

[0088] Please refer to Figures 1 to 4 In this embodiment, the size of the partition 200 in the vertical direction Z is adjustable.

[0089] Along the vertical direction Z, the size of the partition 200 is adjustable, that is, the size of the first opening 160 is adjustable, so that the size of the first opening 160 can be adjusted according to the actual drainage needs of the liquid tank structure 1000, thereby expanding the adjustment range of the first size, improving the drainage efficiency, expanding the scope of use of the liquid tank structure 1000, and expanding the application scenarios of the liquid tank structure 1000.

[0090] Please refer to Figures 1 to 4 In this embodiment, the liquid tank structure 1000 further includes a heating sheet 700 . The heating sheet 700 is attached to the first top wall 120 and located in the second accommodation space 150 .

[0091] Exemplarily, the heating sheet 700 can be constructed as a PTC heating sheet 700. When carbon dioxide is filled into the second storage space 150, the heating sheet 700 can heat the carbon dioxide in the second storage space 150, causing the carbon dioxide to expand due to the heat, or to keep the temperature of the carbon dioxide from decreasing, thereby reducing the chance of carbon dioxide contracting when cooled, and improving the stability and reliability of the liquid tank structure 1000.

[0092] The heating sheet 700 can also heat the liquid in the storage space of the liquid tank 100, thereby increasing the temperature of the liquid. Even if carbon dioxide comes into contact with the liquid, the drainage efficiency of carbon dioxide will not be reduced under high temperature conditions.

[0093] Please refer to Figure 5 , an embodiment of the present application further proposes a ship 2000, comprising the liquid tank structure 1000 of any one of the embodiments of the present application.

[0094] In the ship 2000 proposed in the embodiment of the present application, a partition 200 is arranged in the holding chamber 110 of the liquid tank 100, and the partition 200 is spaced apart from the first bottom wall 130 to form a first opening 160 connecting the first holding space 140 and the second holding space 150. This can reduce the contact area between carbon dioxide and the liquid in the liquid tank 100, reduce the cooling area of carbon dioxide, reduce the shrinkage volume of carbon dioxide, and improve the drainage capacity of the liquid tank structure 1000. A plurality of first holes 210 are provided on the partition 200, and the plurality of first holes 210 pass through the partition 200 along the thickness direction X of the partition. In this way, when the liquid tank 100 is filled with water, the carbon dioxide in the second holding space 150 can enter the first holding space 140, thereby improving the water intake efficiency of the liquid tank 100.

[0095] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0096] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0097] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

[0098] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A liquid tank structure for reducing heat loss from supercritical carbon dioxide drainage, characterized in that: include: The liquid tank has a receiving chamber, and along the vertical direction, the liquid tank has a first top wall and a first bottom wall that are oppositely arranged; a partition disposed in the accommodating chamber, the partition being connected to the first top wall and extending toward the first bottom wall to separate the accommodating chamber into a first accommodating space and a second accommodating space; a first exhaust valve and a first drain valve, wherein the first exhaust valve is provided on the first top wall and can selectively communicate with the first accommodation space, and the first drain valve is provided on the first bottom wall and can selectively communicate with the accommodation chamber; a first air inlet pipe, the first air inlet pipe extending into the second accommodation space, the first air inlet pipe being used to charge the second accommodation space with supercritical carbon dioxide; Among them, the partition is spaced apart from the first bottom wall to form a first opening connecting the first storage space and the second storage space, and a plurality of first holes are provided on the partition. Along the thickness direction of the partition, the plurality of first holes pass through the partition, and the thickness direction of the partition is perpendicular to the vertical direction.

2. The liquid tank structure according to claim 1, characterized in that: The partition plate is provided with a plurality of first hole groups, which are spaced apart along a first direction, and each first hole group includes a plurality of first holes spaced apart along the vertical direction, and the first direction, the thickness direction of the partition plate, and the vertical direction are perpendicular to each other. The plurality of first hole groups include adjacent first sub-hole groups and second sub-hole groups. Along the first direction, any first hole in the first sub-hole group is arranged opposite to the corresponding first hole in the second sub-hole group.

3. The liquid tank structure according to claim 2, characterized in that: Along the first direction, the distance between two adjacent first holes is A, and along the vertical direction, the distance between two adjacent first holes is B, satisfying: 5mm≤A≤10mm, 5mm≤B≤10mm.

4. The liquid tank structure according to claim 1, characterized in that: The aperture of the first hole is C, which satisfies: 1mm≤C≤5mm.

5. The liquid tank structure according to claim 1, characterized in that: Along the thickness direction of the partition, the sum of the projected areas of the plurality of first holes is D1, and the minimum exhaust cross-sectional area of the first exhaust valve is D2, satisfying: D2 ≥ D1.

6. The liquid tank structure according to claim 1, characterized in that: Along the thickness direction of the partition, the first hole has a second opening and a third opening, the second opening is larger than the third opening, the second opening faces the second accommodation space, and the third opening faces the first accommodation space.

7. The liquid tank structure according to claim 6, characterized in that: The size of the first hole gradually increases along the thickness direction of the partition and away from the first accommodation space.

8. The liquid tank structure according to claim 1, characterized in that: The volume of the first accommodation space is greater than the volume of the second accommodation space.

9. The liquid tank structure according to claim 1, characterized in that: The partition is provided with a blocking member, which is movably provided on the partition to block or open at least a portion of the first hole.

10. The liquid tank structure according to claim 9, characterized in that: The sealing member is constructed as a plurality of first plates stacked along the thickness direction of the partition. Along the vertical direction, the plurality of stacked first plates are movably arranged on the partition. When the first air intake pipe is inflated, the plurality of stacked first plates are laid flat on the partition to seal the plurality of first holes. Along the thickness of the partition, the projections of the plurality of first plates do not overlap.

11. The liquid tank structure according to claim 1, characterized in that: Along the vertical direction, the partition has a first end and a second end arranged opposite to each other, the first end is connected to the first top wall, the second end faces the first bottom wall, and the distance between the second end and the first bottom wall is E1. Along the first direction, the length of the partition is E2, and the first direction, the thickness direction of the partition and the vertical direction are perpendicular to each other. Along the first direction, the minimum cross-sectional area of the second accommodating space is D3, and the minimum cross-sectional area of the first drain valve is D4, satisfying: E1*E2>D4, D3>D4.

12. The liquid tank structure according to claim 1, characterized in that: The size of the partition is adjustable along the vertical direction.

13. The liquid tank structure according to claim 1, characterized in that: The liquid tank structure further includes a heating sheet, which is attached to the first top wall and located in the second accommodation space.

14. A ship, characterized in that: The liquid tank structure comprises the liquid tank structure according to any one of claims 1 to 13.

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