Marine gas storage structure and ship

Abstract

The invention relates to the technical field of ships, in particular to a marine gas storage structure and a ship, the marine gas storage structure comprises a ship body, a tank body and an elastic sealing part, and the two ends of the elastic sealing part are connected with the ship body and the tank body correspondingly; the ship body, the tank body and the elastic sealing part can define a closed containing cavity used for containing liquefied gas. According to the marine gas storage structure and the ship provided by the invention, the volume tolerance capacity of the closed containing cavity of the marine gas storage structure can be effectively improved, so that the marine gas storage structure can adapt to the volume change of liquefied gas in the closed containing cavity due to the temperature influence through the elastic deformation of the elastic sealing part; the elastic deformation of the elastic sealing part can effectively absorb the deformation stress at the joint of the ship body and the gas storage tank body, so that the phenomenon that the joint of the ship body and the gas storage tank body is easily broken under the impact of liquefied gas along with the bumping and shaking of the ship body is effectively avoided.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a ship-used gas storage structure and a ship. Background Art

[0002] Today's gas tankers, dual-fuel ships and other ships that transport or use liquefied combustible gases are usually equipped with ship-mounted gas storage structures. The ship-mounted gas storage structure is usually a closed gas storage space formed by the hull and the gas storage tank body. However, during the movement of the ship, as the temperature inside the ship changes, the liquefied gas in the gas storage space is very likely to undergo volume changes such as liquefaction or vaporization, causing the gas pressure in the ship-mounted gas storage structure to change, making the ship-mounted gas storage structure have a certain risk of bursting; and during the movement of the ship, as the hull shakes and sways, the connection between the hull and the gas storage tank body is very likely to undergo relative displacement or even breakage under the impact of the liquefied gas, thereby affecting the safety of gas storage. Summary of the invention

[0003] The purpose of the present application is to provide a ship-borne gas storage structure and a ship, so as to solve to a certain extent the technical problems existing in the prior art that during the movement of the ship, as the temperature inside the ship changes, the liquefied gas in the gas storage space is very likely to undergo volume changes such as liquefaction or vaporization, resulting in changes in the gas pressure inside the ship-borne gas storage structure, which makes the ship-borne gas storage structure have a certain risk of bursting; and, during the movement of the ship, as the hull pitches and shakes, the connection between the hull and the gas tank body is very likely to undergo relative displacement or even breakage under the impact of the liquefied gas, thereby affecting the technical problems of the safety of gas storage.

[0004] According to the first aspect of the present application, a ship-use gas storage structure is provided, comprising a ship body, a tank body and an elastic sealing portion, wherein two ends of the elastic sealing portion are respectively connected to the ship body and the tank body, so that the ship body, the tank body and the elastic sealing portion can be enclosed to form a closed chamber for containing liquefied gas.

[0005] Preferably, the elastic sealing portion includes a first fitting portion, a flexible bending portion and a second fitting portion, the first fitting portion is fitted with part of the ship body, the second fitting portion is fitted with part of the tank body, and the flexible bending portion connects the first fitting portion and the second fitting portion.

[0006] Preferably, the first fitting portion, the flexible bending portion and the second fitting portion are an integrally formed flexible sealing member;

[0007] And / or, the cross section of the flexible bending portion is wavy.

[0008] Preferably, the ship body includes a first flange, the tank body includes a second flange, and the first flange and the second flange are arranged opposite to each other along a first direction;

[0009] The first fitting portion is fitted with the first flange, and the second fitting portion is fitted with the second flange;

[0010] The elastic sealing portion is disposed between the first flange and the second flange.

[0011] Preferably, it also includes a hard pressing sheet and a connecting assembly for connecting the hard part and the flexible part, and the connecting assembly includes a connecting bolt and a connecting nut;

[0012] The hard pressing sheet is attached to a side of the flexible member that is opposite to the hard member;

[0013] The connecting bolt passes through the hard part, the flexible part and the hard pressing sheet and is bolted to the connecting nut;

[0014] Wherein, the hard component is the ship body or the tank body, and the flexible component is the elastic sealing part.

[0015] Preferably, a flexible gasket is further included, and the flexible gasket is arranged between the flexible member and the hard pressing sheet.

[0016] Preferably, when viewed along the extension direction of the connecting bolt, the flexible gasket completely covers the hard pressing sheet.

[0017] Preferably, the connection assembly further comprises a spring washer;

[0018] The connecting bolt is inserted from the hard part to the side where the flexible part is located, and the spring washer is pressed between the bolt head of the connecting bolt and the hard part;

[0019] Alternatively, the connecting bolt is passed through the flexible member toward the side where the hard member is located, and the spring washer is pressed between the connecting nut and the hard member.

[0020] Preferably, the connection assembly further includes a hard gasket, and the hard gasket is arranged between the spring gasket and the hard part.

[0021] According to the second aspect of the present application, a ship is provided, comprising a ship gas storage structure as described in any of the above technical solutions, and thus having all the beneficial technical effects of the ship gas storage structure, which will not be described in detail herein.

[0022] Compared with the prior art, the beneficial effects of this application are:

[0023] The ship gas storage structure provided in the present application connects the ship body and the tank body through an elastic sealing part, and utilizes the elastic deformation ability of the elastic sealing part. On the one hand, it can effectively improve the volume tolerance ability of the closed cavity of the ship gas storage structure, so that the ship gas storage structure can adapt to the volume change of the liquefied gas in the closed cavity due to the influence of temperature through the elastic deformation of the elastic sealing part; on the other hand, the elastic deformation of the elastic sealing part can effectively absorb the deformation stress at the connection between the ship body and the tank body, thereby effectively avoiding the phenomenon that the connection between the hull and the gas storage tank body is easily broken under the impact of the liquefied gas as the hull shakes.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. 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 paying any creative work.

[0026] Figure 1 A schematic cross-sectional view of a marine gas storage structure provided in an embodiment of the present application;

[0027] Figure 2 for Figure 1 The enlarged structural schematic diagram of the provided marine gas storage structure at position A;

[0028] Figure 3 This is a schematic diagram of the axonometric structure of a marine gas storage structure provided in an embodiment of the present application.

[0029] Reference numerals:

[0030] 1-hull; 11-first flange; 2-tank body; 21-second flange; 3-elastic sealing part; 31-first fitting part; 32-second fitting part; 33-flexible bending part; 4-connecting assembly; 41-connecting bolt; 42-connecting nut; 43-hard pressing sheet; 44-flexible gasket; 45-spring gasket; 46-hard gasket; 5-enclosed cavity.

[0031] F1 - First direction. DETAILED DESCRIPTION

[0032] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0033] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0034] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Refer to the following Figures 1 to 3 The invention describes a marine gas storage structure and a ship according to some embodiments of the present application.

[0038] See also Figures 1 to 3As shown, the embodiment of the first aspect of the present application provides a marine gas storage structure, which includes a ship body 1, a tank body 2 and an elastic sealing part 3, and the two ends of the elastic sealing part 3 are respectively connected to the ship body 1 and the tank body 2, so that the ship body 1, the tank body 2, and the elastic sealing part 3 can be surrounded to form a closed cavity 5 for containing liquefied gas. According to the above technical features, a food ship gas storage structure is provided, the ship body 1 and the tank body 2 are connected by the elastic sealing part 3, and the elastic deformation ability of the elastic sealing part 3 is utilized. On the one hand, the volume tolerance ability of the closed cavity 5 of the marine gas storage structure can be effectively improved, so that the marine gas storage structure can adapt to the volume change of the liquefied gas in the closed cavity 5 due to the temperature through the elastic deformation of the elastic sealing part 3; on the other hand, the elastic deformation of the elastic sealing part 3 can effectively absorb the deformation stress of the connection between the ship body 1 and the tank body 2, thereby effectively avoiding the phenomenon that the connection between the ship body and the gas storage tank body is very easy to break under the impact of the liquefied gas as the ship body shakes.

[0039] Preferably, if Figure 1 and Figure 2 As shown, the elastic sealing part 3 may include a first fitting part 31, a flexible bending part 33 and a second fitting part 32, wherein the first fitting part 31 is partially fitted with the ship body 1, the second fitting part 32 is partially fitted with the tank body 2, and the flexible bending part 33 connects the first fitting part 31 and the second fitting part 32. Thus, on the one hand, by fitting the first fitting part 31 with the ship body 1 and the second fitting part 32 with the tank body 2, the connection area between the elastic sealing part 3 and the ship body 1 and the tank body 2 is effectively improved, thereby improving the sealing between the elastic sealing part 3 and the ship body 1 and between the elastic sealing part 3 and the tank body 2; on the other hand, by connecting the first fitting part 31 and the second fitting part 32 with the flexible bending part 33, the elastic deformation range of the elastic sealing part 3 is effectively increased, thereby further improving the volume tolerance capacity of the closed cavity 5 of the marine air storage structure.

[0040] Preferably, the cross section of the flexible bending portion 33 may be wavy, such as Figures 1 to 3 As shown in the figure, an example is shown in which the cross-section of the flexible bending portion 33 is in the shape of a wave, however, it is not limited thereto, and the number of bending waves in the cross-section of the flexible bending portion 33 can be adaptively adjusted according to the setting space of the elastic sealing portion 3.

[0041] Preferably, the first fitting portion 31 , the flexible bending portion 33 and the second fitting portion 32 are an integrally formed flexible sealing member to further improve the sealing performance of the elastic sealing portion 3 .

[0042] Optionally, the flexible sealing member may be a rubber member, a silicone member or other polymer flexible sealing members.

[0043] Preferably, if Figure 1 and Figure 2 As shown, the ship body 1 may include a first flange 11, and the tank body 2 may include a second flange 21. The first flange 11 and the second flange 21 may be arranged opposite to each other along the first direction F1, the first fitting portion 31 may be fitted with the first flange 11, and the second fitting portion 32 may be fitted with the second flange 21. In this way, on the one hand, the first flange 11 and the second flange 21 may be arranged opposite to each other along the first direction F1, which can effectively facilitate the connection of the elastic sealing portion 3 with the ship body 1 and the tank body 2 respectively; on the other hand, through the arrangement of the first flange 11 and the second flange 21, the joint direction between the ship body 1 and the elastic sealing portion 3 (tank body 2 and the elastic sealing portion 3) can be effectively changed, thereby effectively avoiding the occurrence of a gap between the elastic sealing portion 3 and the ship body 1 (tank body 2) under the push of the air pressure in the confined space, resulting in air leakage.

[0044] Preferably, if Figure 1 and Figure 2 As shown, the elastic sealing portion 3 can be arranged between the first flange 11 and the second flange 21. In other words, the first fitting portion 31 fits with the side of the first flange 11 facing the second flange 21, and the second fitting portion 32 fits with the side of the second flange 21 facing the first flange 11, thereby effectively reducing the wear between the elastic sealing portion 3 and the ship body 1 and the wear between the elastic sealing portion 3 and the tank body 2, thereby increasing the service life of the elastic sealing portion 3.

[0045] However, it is not limited to this and is not shown in the figure. The above-mentioned elastic sealing portion 3 can also be covered on the outside of the above-mentioned first fitting portion 31 and the second fitting portion 32. In other words, the first fitting portion 31 fits with the side of the first flange 11 facing away from the second flange 21, and the second fitting portion 32 fits with the side of the second flange 21 facing away from the first flange 11. In this way, the sealing performance of the elastic sealing portion 3 at the connection between the ship body 1 and the tank body 2 can be effectively improved.

[0046] In an embodiment, Figures 1 to 3As shown, the above-mentioned marine gas storage structure can also include a hard pressing plate 43 and a connecting component 4 for connecting the hard part and the flexible part. The connecting component 4 includes a connecting bolt 41 and a connecting nut 42. The hard pressing plate 43 can be attached to the side of the flexible part facing away from the hard part. The connecting bolt 41 penetrates the hard part, the flexible part and the hard pressing plate 43 and is bolted to the connecting nut 42. In this way, on the one hand, by arranging a hard pressing plate on the side of the flexible part facing away from the hard part, the flexible part is clamped between the hard pressing plate and the hard part, which can effectively ensure the flatness of the flexible part and thus ensure the sealing effectiveness of the flexible part; on the other hand, the hard pressing plate 43 can effectively increase the contact area between the bolt head of the connecting nut 42 or the connecting bolt 41 and the flexible part, thereby preventing the bolt head of the connecting nut 42 or the connecting bolt 41 from crushing the flexible part.

[0047] like Figures 1 to 3 As shown, the connection assembly 4 can be used to connect the hull 1 and the elastic sealing portion 3 , and correspondingly, the flexible member can be the first fitting portion 31 , and the hard member can be the first flange 11 .

[0048] Similarly, if Figures 1 to 3 As shown, the connection assembly 4 can also be used to connect the tank body 2 and the elastic sealing portion 3 . Correspondingly, the flexible member can be the second fitting portion 32 , and the hard member can be the second flange 21 .

[0049] Preferably, if Figure 3 As shown, the first fitting part 31 and the first flange 11 can be connected via the plurality of connecting components 4, and the hard pressing sheet 43 for clamping the first fitting part 31 can be adapted to the shape of the first fitting part 31 so as to press the first fitting part 31 as a whole onto the upper surface of the first flange 11, thereby ensuring the airtightness between the first fitting part 31 and the first flange 11 and preventing the first fitting part 31 from warping and folding to cause air leakage.

[0050] Similarly, not shown in the figures, the second fitting portion 32 and the second flange 21 may also be connected via a plurality of the connecting components 4, and the hard pressing sheet 43 for clamping the second fitting portion 32 may be adapted to the shape of the second fitting portion 32 so as to press the second fitting portion 32 as a whole onto the upper surface of the second flange 21, thereby ensuring the airtightness between the second fitting portion 32 and the second flange 21 and preventing the second fitting portion 32 from warping and folding to cause air leakage.

[0051] Preferably, if Figure 1 and Figure 2As shown, the above-mentioned marine air storage structure may further include a flexible gasket 44, which may be arranged between the above-mentioned flexible member and the hard pressing plate 43 to prevent the above-mentioned elastic sealing part 3 from repeatedly rubbing against the hard pressing plate 43 during the elastic deformation process, causing wear of the elastic sealing part 3, thereby increasing the service life of the elastic sealing part 3.

[0052] Preferably, if Figure 2 As shown, when observed along the extension direction of the connecting bolt 41 (i.e., the first direction F1), the flexible gasket 44 completely covers the hard pressing plate 43. In other words, along the first direction F1 and on a plane perpendicular to the first direction F1, the projected area of ​​the flexible gasket 44 is greater than or equal to the projected area of ​​the hard pressing plate 43. In this way, the hard pressing plate 43 can be effectively prevented from contacting with the elastic sealing part 3, thereby further reducing the friction loss of the elastic sealing part 3 and improving the service life of the elastic sealing part 3.

[0053] Preferably, if Figure 2 As shown, the connecting assembly 4 may further include a spring washer 45. Figure 2 As shown in the figure, an example of the above-mentioned connecting bolt 41 passing through the flexible member to the hard member is shown, that is, the connecting nut 42 is arranged on the side where the hard member is located, and the bolt head of the connecting bolt 41 is arranged on the side where the flexible member is located. Figure 1 and Figure 2 As shown, the spring gasket 45 is pressed between the connecting nut 42 and the hard part, so as to apply pressure to both the hard part and the flexible part through the spring gasket 45, so that the hard part and the flexible part always keep a close fit, thereby improving the air tightness of the connection between the hard part and the flexible part.

[0054] However, the present invention is not limited thereto, and the connecting bolt 41 may also be inserted from the hard part to the flexible part. That is, the connecting nut 42 is disposed on the side where the flexible part is located, and the bolt head of the connecting bolt 41 is disposed on the side where the hard part is located. Correspondingly, not shown in the figure, the spring washer 45 is pressed between the bolt head of the connecting bolt 41 and the hard part.

[0055] It should be noted that arranging the spring gasket 45 on the side of the hard component facing away from the flexible component can effectively ensure the effectiveness of the spring gasket 45 and effectively prevent the flexible component from absorbing the elastic potential energy of the spring gasket 45 .

[0056] Preferably, if Figure 1 and Figure 2 As shown, the connection assembly 4 may further include a hard gasket 46 , which may be disposed between the spring gasket 45 and the hard component to prevent the spring gasket 45 from scratching the first flange 11 or the second flange 21 .

[0057] The embodiment of the second aspect of the present application also provides a ship, comprising the ship-borne gas storage structure described in any of the above embodiments, and thus has all the beneficial technical effects of the ship-borne gas storage structure, which will not be repeated here.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A marine gas storage structure, characterized in that: It includes a ship body, a tank body and an elastic sealing part, wherein two ends of the elastic sealing part are respectively connected to the ship body and the tank body, so that the ship body, the tank body and the elastic sealing part can be surrounded to form a closed cavity for containing liquefied gas.

2. The marine gas storage structure according to claim 1, characterized in that: The elastic sealing part includes a first fitting part, a flexible bending part and a second fitting part. The first fitting part fits with part of the ship body, the second fitting part fits with part of the tank body, and the flexible bending part connects the first fitting part and the second fitting part.

3. The marine gas storage structure according to claim 2, characterized in that: The first fitting portion, the flexible bending portion and the second fitting portion are an integrally formed flexible sealing member; And / or, the cross section of the flexible bending portion is wavy.

4. The marine gas storage structure according to claim 2, characterized in that: The ship body includes a first flange, the tank body includes a second flange, and the first flange and the second flange are arranged opposite to each other along a first direction; The first fitting portion is fitted with the first flange, and the second fitting portion is fitted with the second flange; The elastic sealing portion is disposed between the first flange and the second flange.

5. The marine gas storage structure according to any one of claims 1 to 4, characterized in that: It also includes a hard pressing sheet and a connecting assembly for connecting the hard part and the flexible part, wherein the connecting assembly includes a connecting bolt and a connecting nut; The hard pressing sheet is attached to a side of the flexible member that is opposite to the hard member; The connecting bolt passes through the hard part, the flexible part and the hard pressing sheet and is bolted to the connecting nut; Wherein, the hard component is the ship body or the tank body, and the flexible component is the elastic sealing part.

6. The marine gas storage structure according to claim 5, characterized in that: It also includes a flexible gasket, which is arranged between the flexible part and the hard pressing sheet.

7. The marine gas storage structure according to claim 6, characterized in that: Observing along the extension direction of the connecting bolt, the flexible gasket completely covers the hard pressing sheet.

8. The marine gas storage structure according to claim 5, characterized in that: The connecting assembly also includes a spring washer; The connecting bolt is inserted from the hard part to the side where the flexible part is located, and the spring washer is pressed between the bolt head of the connecting bolt and the hard part; Alternatively, the connecting bolt is passed through the flexible member toward the side where the hard member is located, and the spring washer is pressed between the connecting nut and the hard member.

9. The marine gas storage structure according to claim 8, characterized in that: The connection assembly also includes a hard gasket, which is arranged between the spring gasket and the hard component.

10. A ship, characterized in that: A marine gas storage structure comprising any one of claims 1 to 9.

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